Great review man. I worked with the /// team on the shoe for the last years and think you hit a lot of the points we wanted to achieve. Its definitely a new running experience and takes some runs to get the full potential. I think the range of the events the athletes pushed these on shows how much getting used to it will do. Looking forward to the full review!
Stoked you found the channel! I normally give a lot of grief for companies taking a super long time getting a product to market, but I'm glad y'all spent the time to really dial this in and make it a special shoe!
Exactly. You can have a lot of good ideas and insights, but in the end it's the process of dialing in the whole package with a lot of good feedback that takes time ... and I believe most good products take that long. Here it was just more obvious, because we decided to do a lot of the testing with big athletes in big races early on in the process to be as close to the real usecase as possible.@@ConversationalPace
It has been really cool to see the evolution of the shoe over the last few years of athletes racing in them. Can't wait to start seeing version 2 being tested out 😅
Been on a shoe journey after taking up running after my 50th birthday. Coming from the cycling world (28yr career) I appreciate the technicality of all these new shoes, and the in depth reviews Brett and Finn provide. It's also fun being completely new to something without any pre-formed opinions. I run road in Endorphin Speed 3's and tried on the Endorphin Edge but it didn't feel right. Then I tried on the Tecton X2, Agravic Speed and Speed Ultra, and Ultrafly. Of those I ended up running in the Speed Ultra and Ultrafly, and kept the Speed Ultra. I could feel the weight of the Ultrafly and despite the wide toe box my foot felt a little suffocated by the low volume and Vaporweave lining. The clear "toe bumper" also extends around to the ball of the foot and gave me bad blisters. Comfy step in, just not a fit for my foot. The Speed Ultra was, and still is, just weird. I can't walk normally in them still! My true to size fit is a 10, but in these I actually went down to a 9 and it's perfect. I found that heel lock was eliminated after getting the right fit and playing with lacing. On the trail, like I said, I don't have anything to compare it to but these are just super fun. Turnover is fast, grip is high, and they are light. Most importantly they are comfortable, fit my foot and I love the LSP midsole. If I had the funds and could justify two pair of trail shoes, the Agravic Speed would be awesome. they're crazy light, i'm sure they would be the rowdy brother to this shoe.
Thanks for finding the channel and for watching! I can totally see myself coming to this shoe in the same way you did. It's funny how great this Speed Ultra is to run in, and how weird it feels to walk in. Terrex did a great job with these Agravic Speed and Speed Ultra models. Running in both currently, and they do really compliment each other well. Comparison and full review of both coming soon!
Been waiting for this to drop this April. The Terrex already informed this from their insta last week I think. Been looking forward to this shoe and now this review!
I got the Agravic Speed Trail model, this shoe is the real deal: I also have the Kjerag, and the Speed Trail beats it. First things first: Size down 1/2size from the previous version or your normal size. US12.5@10oz 1/2oz more than kjerag, so very light. More toebox room than the kjerag, not overly narrow across the metatarsals as the kjerag is. More and softer cushion, with a rocker that helps forward propulsion and makes it more 'fun' to run in than the kjerag. 8mm drop vs 6, I'd prefer 6mm for steep downhills. Same ungusseted tongue (very unhappy about this!) as kjerag, but smaller gaps in ankle collar & upper to let rocks in. Laces that don't come undone, unlike kjerag. The TST is happier on smooth to moderate trails, but I did 3hours on steep fairly rocky singletrack yesterday with no serious complaints, no toe-banging or underfoot pains. Do use heel-lock to keep the heel stable. $40 cheaper than the kjerag!
@@ConversationalPace I wrote that comment after a 3hr run on less technical forest trails. After another 2hr run yesterday on a very rocky trail, I'll say they are not a great choice for that type of terrain -- not a matter of protection but not enough torsional rigidity for rockhopping for me, plus the softer stack and high drop become issues.
Just got them last week and have 60k in mine and pretty much completely agree with your takes. I have to force myself to not use it all the time because it handles everything I throw at it so well and is so much fun. Some additional observations: It is grippier in muddy conditions than I thought, better than a Slab Genesis and a Slab Ultra FDH for example. The shoelaces are pretty special although mine got untied with a double knot which almost never happens but with these ones the lockdown didn’t change - definitely a pro and a con because lacing these up is, in typical adidas fashion, a pain in the ass. Half size down could be an option for some because it is important that the narrowing mid foot of the shoe aligns with the arch otherwise the famous arch blister could be a thing in the shoe. As a mid foot to forefoot striker most of the time I don’t have the running uphill sensation but landing further back I noticed that negative drop sensation, like a little bump you have to overcome. Will be interesting what the shoe does to the mechanics of people because it rewards landing further forward in a big way imo. Keep up the great work absolutely love it!
This is an awesome recap and I agree with all of this! Thanks for chiming in about the sizing too, as you're right not aligning with the arch could cause some big issues since it's so pronounced. I hadn't gotten to take it in very muddy conditions, but that's good to know!
Hi, I would like to congratulate you on the review, and I can't wait to listen to you in the complete one, in the meantime I ask you if they seemed true to size, thank you. Best regards.
I initially thought that they seemed a little long and sizing down was a maybe, but now I'm thinking that nearly everybody should be sizing down a half size
Tried it on, walked around, put it straight back in the box to return, one of the most uncomfortable shoes I’ve ever tried, road or trail. But solid review, very robust and comprehensive, especially the comparison to other shoes and responding to questions.
Yeah I would have had a tough time making the purchase if I tried them on in store. Such a strange initial step in feel isn't going to win anybody over, so I can't blame you there!
Llevo con estas un poco más de 100k, entre ellos una competencia de 42k, y las sensaciones después de los 25k de carrera fueron muy confortables. En las bajadas se comportaron muy bien. Si sentía falta de estabilidad en algunos momentos, pero creo que es por la falta de amaestrarlas.
Love the channel and your in depth perspectives, can’t wait for the full review ! In the meantime, do you see a use case for these Speed Ultras for more middle to back of the back runners in a 50 to 100k race distance, or would the benefits come into play more for faster pace runners? Thanks for all your work!
Thanks for watching! We're recording the full review in a few days 👍. I think the Speed Ultra can definitely still be useful for middle or back of the pack as long as you get your feet used to the rocker of the shoe. There are definitely efficiency gains to be had with this shoe at all paces!
@@ConversationalPace Quick update. I picked these up based on your initial review and response to my question and I love them! I’m a 54 yo middle of the pack (on a good day) runner and I’m getting the same 20 secs per mile improvement you mentioned in the full review. Also super fun to run in and surprisingly stable and nimble even on steep technical terrain. And I’m also noticing better, faster recoveries for my workout and long runs. As an older runner this is particularly helpful. My legs just feel fresher so I think this will help me improve my fitness over time as well. Never would’ve thought these were for me, but your review and response really opened things up for me. Thanks for all the time and effort you put it, makes a big difference!
Yes the faster recovery is perhaps the biggest benefit of these max cushioned shoes that doesn't get talked about enough! Glad they're working out for you!
@@cwengelkingReally appreciate your questions and comments. I’m close to you in age and midpack abilities and have been reading and watching reviews on this shoe like crazy. I love the Adidas Boston 12 for the road and the two seem similar to me in terms of midsole compound, upper, and fit. I was wondering if the Speed Ultra is too much shoe for me, but perhaps not. Thanks for sharing your experience.
Awesome review!! Just got my pair and can’t wait to take them out to the trails. Question for you: If you were doing a mostly dirt road rolling 100m (like Vermont 100), would you wear a trail shoe or a road shoe? Thanks!
I think the answer to that question is going to be very much a personal preference with my recommendation being the one that feels the most comfortable on your feet and has the smallest chance or creating any foot issues, blisters, etc. For me that would likely be a road shoe like the Saucony Endorphin Speed, as that one just checks all the right boxes for me
Very excited about this shoe that I've been waiting for Adidas to release for such a long while. Big fan of LSP on their road running shoes. About 80% of my weekly miles are on the road with the remainder on the trails, but I intend to make the ratio 70/30 or even more as time goes by and I believe these new Agravic Terrex shoes (Speed Ultra and Speed) will help me do that. Being in SoCal with desert-like conditions and mostly mild hills and smoothened and hard-packed dirt/gravel trails (unless I go out to the mountains), it seems these shoes are perfectly suited for such terrains. Kind of bummed that the men's Speed Ultra's release has been delayed until 4/29 on the Adidas site. I ordered it a full-size up in women's size and will see how it fits. Ordered the regular Speed as well. Glad to know that the Speed Ultra doesn't have a carbon plate/rods. I've had the NB SC Trail, Endorphin Edge, and Tecton X (tried the X2 and returned it right away) and while they were good shoes and enjoyed getting some good miles out of them, I've become convinced that carbon plates are just not necessary or are even a hindrance for the trails. I especially dislike the feel of carbon plates when going downhill. The landings on jumps tend to feel quite harsh, even with softer foams. Anyway, thanks for the review. I have a feeling that I'll like these very much. Seems like it'll be very good for road-to-trail excursions as well. I live in a very hilly neighborhood with asphalt and dirt trails crisscrossing each other in all directions, so a shoe that can handle both very well (which I found the NB SC Trail well suited for) will be a big plus.
Yeah I think that based off of everything you're searching for, this Speed Ultra checks a lot of the boxes! You definitely don't get that slappy carbon plate downhill feeling. I'm not sure if it's the plastic rods or the shape of the heel, but either way, it works! Hopefully the sized up women's works! Curious to hear your thoughts on the Agravic Speed when you get that as well!
Love your reviews, just one question. Looking at a shoe for OCC in Chamonix, would you consider this shoe for 55k or go with something like the Mafate Speed 4 or Tecton X2?
While I haven't gotten to take this shoe on the technicality of something like OCC, I do feel confident It would work for me at a race like OCC. As long as I was able to get in some bigger training days on similar technicality and course profile beforehand.
Plastic rods and stripped back upper totally remind me of the old Adizero Feather from like 10 years ago. That shoe was great for road running, and with a decent outsole probably would've made a nice trail racer.
Adidas had so many road shoes back in the day that would have made great trail shoes with just a little more tread. The Adizero CS was one of my favorite shoes of all time for trails. Thanks for watching!
@@ConversationalPaceAbsolutely! The old Adios 2 were amazing trail shoes, with decent grip. Hal Koerner famously wore them for most of his ultras, including a Hardrock win.
@@ConversationalPace It really was a popular trail shoe. I did The Rut 50K the second year they held it, the year Killian was there, and I saw dozens of racers wearing them. The days of wearing marathon flats for trail running... Adios 2, New Balance 1400, Brooks Green Silence and Jamil Coury's old fave, the Mizuno Wave Musha! He even tried that bad boy at Barkley!
I'm a bit gutted with my experience in them. I ran two 10k runs on the same route with a mixture of broken steep downhill fireroad and regular road in them. I wasn't prepared for how lethally unstable they are on the broken fire road, and I've run ultras in the Saucony Endorphin Edge which got bad press for their instability. In fact I tried on my pair of Endorphin Edge after the second run in the agravic and they felt solidly planted and just as springy by comparison. I am a mid/forefoot striker having run in vibram fivefingers for about 7 years so I'm not sure whether it's me or the shoes. I'm baffled as to how narrow the scope of use cases for these shoes must be. Surely there are more than WStates and UTMB to take into account? . BTW I'm a 60Kg runner so maybe this plays into the experience in some way. I'm hoping they will bed in somewhat. Damn hype-cycles....I saw the Jester running in a pair of what looked like 10 year old Hokas at the finish of the Cocadona 250 yesterday (And I think the winner was wearing Huaraches sandals...) and it reminded me that the whole quiver and seasonal optimisation is mainly BS I need to simplify again instead of feeding into this nonsense
Dang that's such a bummer to hear! It's got to be something with the shape of the shoe just not matching up with your foot the way it should. I'm about 60kg too and feel great on moderate technical terrain in this shoe. Better than the Endorphin Edge for me. To your point, Adidas designed this shoe with mostly Western States in mind, and it happened out to be good enough for UTMB for most of their pros. The initial concept was to try and make the perfect shoe for running downhill in on mellow terrain. The more people I hear from about this shoe, the more it is one of those love it or hate it type fits due to how specific everything about this shoe is. I think there's room in the space for shoes like this, but there absolutely still needs to be a (larger) market of shoes that are very well rounded, because you're right, a trail runner should be able to get by just fine with 1 or 2 pairs of shoes in their rotation and not 8
@@ConversationalPace Thanks for the response. I won't give up on them yet. I'm going to test them on a 80k solo run across a mix of terrain and elevation at the end of the month and if they prove themselves there then we're good to go
I have both, the Vectiv is wider, especially the toe box, and more comfortable, more plush, but slightly heavier. The vectiv has a much wider heel for downhill. I can’t imagine wearing the Terrex on anything more than 50k. Best to wait for the tecton x3. I would also ignore all the “oh this professional athlete won this race wearing them”. They likely would have still won the race wearing flip flops.
I've really enjoyed the Terrex Speed Ultra (Tim Olsen shoe) but always wanted a little more cushion and more supportive heel for longer runs (50k+). Have you run in that shoe? How does the fit/feel/ride compare? Thanks, great channel!
I have tried it on in a store, but never run in it. This Agravic Speed Ultra is a totally different shoe being so much higher cushioned and having a really aggressive rocker. The Terrex Speed Ultra is much less cushioned and lower to the ground, which will help with more technical terrain giving you more ground feel. The Agravic Speed Ultra doesn't have much ground feel at all and takes the bulldozer approach to the trail
I had never run in a full Litestrike Pro shoe before and figured it would be great right out of the box, but I was pleasantly surprised when It kept feeling better the more I ran in it!
Been waiting for this! The X shape is putting me off a bit. a narrow midsection market the shoe lighter but it will reduce torsional stiffness. I have been waiting for a superblast for trails, with a bit more rockered heel section. I dunno if I should push the button on this one. Caldera 7 (hardly used these days), Speedland PG:GS and the awesome Trabuco Max 2 are the only trail shoes of 2023 that have survived my rotation. After I heard you say someone took the Bostons a lot on the trails I started to I take the Superblast on hard dry/wet trails with no larger stones.. really really good. Am not a Hoka fan (speedgoat 5 is a dead boring shoe IMHO, I use the GTX for hiking), but the Tectron 3 I have put high on the list for 2024, it will take until the fall unfortunately. Does the Agrivic beat the awesome allround Trabuco Max 2? , or should look at it as a predominant downhill shoe (I'm a lot in the alps)
I think that the Trabuco Max 2 and this Agravic Speed Ultra don't have a ton of overlap, as I feel much more comfortable at all day (or even multi day) pace in the TM2, whereas the Speed Ultra wants to go fast. They're both nice going downhill, but one edges the other out for me depending on the pace and effort I'm descending. Perhaps the upcoming Agravic speed will be more what you're looking for still having a Litestrike Pro midsole, but no plate, and built on the last of the Boston!
For off chamber / seirously outsloped sections of trail, does that minimalist upper keep your foot on top of the midsole? That rocker profile looks a bit crazy. Thanks for your guys^ reviews.
I haven't taken them on anything too off camber, but for the moderately off camber trail I have been on, they're not the best but get the job done. The raised midsole sidewalls do add a bit more support regarding keeping the foot in place
i am running the Zermatt Half marathon in a few weeks. I am a road runner. Its basically 1000 meters climb with a 14 km steep climb mostly on road and hard pack trail - then 4 km across boulder field single track and gravel and then 3 km on a 15-20% climb on hard pack. Some run in road shoes. I was thinking of the Agravac Speed or the Solomon S Lab Pulsar 3 or the Saucony Edge - what would you consider? BTW minimal amount of downhill - its only up
for a race that's mostly uphill, I would probably be in the Salomon, because grip and weight are the two factors that I am thinking about for a race profile like that. Definitely a very personal preference though. I think the Pulsar or the Agravic Speed are great choices but for pretty different reasons.
The Genesis is much lower and more traditional feeling being medium cushion and not much for a rocker. I'd pick the Genesis for more rugged and technical terrain and then use the Speed Ultra for anything more mellow and faster.
So glad you got to beta-test it for the BC60k - you were lucky that mud was frozen, brother, because for the 100k? Total fell meets Florida/Georgia clay-fest. Great review!
Great review, I just purchased a pair but the right is 10grams heavier than the left I’m wondering whether I should exchange them for another pair, I’m a uk 10 - the left is 278 and the right 288 - nothing to worry about ?
Personally, I wouldn't worry about. That's right on the edge of the acceptable limit, but in a UK 10 and for a trail shoe, I doubt that would be noticed. I also wouldn't have the patience to exchange them 😂
Be interesting how this shoe will feel for hiking big inclines. As we saw it on all adidas athletes at UTMB, the rocker makes me feel it would feel weird hiking in it (might be a good test for the full review)
Yeah I will definitely take it on some steeper trails that necessitate more hiking. The one run I did that I had to hike some, it felt really strange, but maybe that's something I need to get used to and it's not a detriment to my uphill efficiency. More testing to come!
Finally. Now THIS is a trail super shoe. You can tell by how unpleasant it is walking back to your car. 😺. That and it’s really fast. Good on downhills, as advertised. No issues on the uphills. I race road marathons in the Adios Pro 3, and this upper is almost as weird. Tongue pads will cure the lace bite. And I know I will eventually get a proper lockdown. Lightstrike Pro FTW. I know it can handle distance.
I just did Desert Rats 50k in this. Perfect for this type of race. Nice and grippy on the rock slabs. A couple of near ankle rolls but nothing unusual. I did start to get a blister on right arch and had to stop to put on a bandaid, which worked. Likely not broken in sufficiently. I also anticipated a hot spot on the left toe and put on one of those rubber toe rings and no further trouble. Tongue pads did help getting a good lockdown. This will be my dry conditions race shoe. BTW I wore the Ultraflys through the airports on the way to/from the race (as a backup). It was perfect for that. 😉
How much did you run in them before the race? You're right probably not broken in enough. So you chose these over the Ultrafly? Do you feel like that was the right call?
I haven't gotten to try the Fujispeed 2 out yet, but from what I've gathered from a few friends who have tried it, the Fujispeed 2 is going to be a little lower to the ground and more 'normal' feeling with the shape. Having run in FF Blast + foam shoes before, I have a hunch that this Agravic Speed Ultra is going to be a little more responsive. Now if Asics released a trail shoe with some FF Blast Turbo in it, that would be a different conversation!
Aww dang that's a huge bummer. Definitely something that can happen with such a pronounced rocker and a feeling where the high point of the shoe is right at the arch🥲
I know athletes wore these at UTMB that being said I just received my pair of the non baller agravic speeds and I'm curious your thoughts on how these will do on a technical east coast trail. I try my best not to return a shoe after running in them but first impressions were similar you yours in the heel rocker is a very odd feeling!
I am so curious to see how the Agravic Speed compares. I have a hunch it's going to be the better technical shoe as well as a more sustainable daily trainer for most.
It's definitely a bubble shoe for sure. My pair is a 10, which is my regular size, and it's just a hair longer than what a true 10 would be. I would go down a half size if I was going to be training and racing for shorter and faster races (probably trail marathon or shorter) to have the additional lockdown. For the training and racing I'm currently doing (50km and up), I would stick with my regular size to have the room in the toe box that's comfortable for me.
That's one of the last shoes I haven't gotten to try out yet and would love to compare those two! Just based off what I know and have heard, the Vectiv Pro 2 is going to have a shorter and steeper rocker at the toe. Cushion wise, it'll probably be pretty close, as the dream foam is a close feel, but just a little firmer
I just got mine. Tried them on. I sized down a half size to 8m… I almost think I could size down to a 7.5m. Anyone else getting that? There is still Wiggle room
There is definitely some people who are going down a half size. I probably could have as well, but the lock down was still great in my regular 10, even though it is just a touch long
I found it almost hard to heel strike in because of how pronounced the rocker is in the heel. It throws you onto your midfoot so fast, I feel like it can either be awesome for a heel striker due to helping speed up the gait, or it would be awful because there isn't enough stability in the heel to properly absorb that impact. Could totally go either way though and it's hard to predict which way because it's such a unique feeling shoe.
For me personally, it wouldn't be my first choice, because I don't love how this shoe feels when hiking. The Agravic Speed (on paper at least) seems like a more compelling choice. We are planning to review that model as well once our units arrive, so we'll be able to say more confidently what race it might be best suited for
@@ConversationalPace Yeah, I tried a few sizes today at my local Adidas store. It has definitely a roomier toe box than the Adios Pro 3. In the latter one I prefer an US 12.5, but in the Agravic Speed Ultra I would stick to 12.
It somehow made it's way to my doorstep. 3 runs in: the best worst shoe, the worst best shoe, the best best shoe, the worst worst shoe. This shoe is 4 seasons in a day, it has multiple personality disorder. I needed to learn to run again, almost fell a few times especially on the straight. I had great legs after a fast run with a lot of steep uphill and downhill but lower backpain.. a first. I almost rolled my ankle 3 times in a run, I never roll my ankle, like ever.. I have heal slip, I never have heel slip, again like ever.. So far it seems to be a great shoe to go up and down, I am not decided on all in between. The upper is a plastic hot mess (I wish Asics could just release a superblast with a trail sole), its a mesh shoe but feels HOT, the heel is way worse than the Altra Mont Blanc, the heel section of the midsole/sole is just way too narrow. The shoe pushes you otr supinate, making ankle rolls more likely. Fit: seems to be long, might have been able to use 1/2 size down (which I never had to do with any shoe brand) For the rest it is awesome Adidas just shouldn't have listened to the Pro runners, they made the same mistake now which Pepsi and Coke made in the past.
Thanks for your feedback! I've definitely had some hot and cold runs with this shoe, but not quite like this. So perhaps it'll depend on the day, but what's the 0-10 rating with 10 being the best shoe you've ever worn?
@@ConversationalPace I seriously don’t know. The shoe feels very fast, but I don’t see it in my segment times, perhaps yet.. I ran the same roads yesterday with the superblast and felt way more comfortable and was faster than the day before with similar HR since you mentioned someone running trails with the Boston 12, I started that as well but then with the superblasts This should could have been a 10 if the heel would be way wider, like the caldera, Speedland and the upper would have been good. It is a super interesting shoe though
@@ConversationalPace I went home yesterday after 3k, muscles were tightening up. Switched to the speedlands, way more comfortable. But a few KM in you start feeling the weakness of the speedland in comparison, the rocker is missing. On the agravic there is no lock on the heel for an gaitor, which is somewhat stupid for a trail shoe. I assume Finn agrees. Not giving up on this shoes, there is too much coolness, will run it once or twice a week for the next weeks.
CARBON FIBER SIMPLY SNAPS. From F1 cars to Handlebars to Crank Arms. Super overrated. Just have to change the "chemistry" with plastic to make it firm or flexible. But for sure.. it'll last way longer.
Updated 4/19/2024
Nearly complete size runs are back in stock at Running Warehouse!!
Shop Men’s Adidas Terrex Agravic Speed Ultra
www.runningwarehouse.com/adid...
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Great review man. I worked with the /// team on the shoe for the last years and think you hit a lot of the points we wanted to achieve. Its definitely a new running experience and takes some runs to get the full potential. I think the range of the events the athletes pushed these on shows how much getting used to it will do. Looking forward to the full review!
Stoked you found the channel! I normally give a lot of grief for companies taking a super long time getting a product to market, but I'm glad y'all spent the time to really dial this in and make it a special shoe!
Exactly. You can have a lot of good ideas and insights, but in the end it's the process of dialing in the whole package with a lot of good feedback that takes time ... and I believe most good products take that long. Here it was just more obvious, because we decided to do a lot of the testing with big athletes in big races early on in the process to be as close to the real usecase as possible.@@ConversationalPace
It has been really cool to see the evolution of the shoe over the last few years of athletes racing in them. Can't wait to start seeing version 2 being tested out 😅
You guys are setting the bar when it comes to shoe reviews. Appreciate your work!
Much appreciated! Just stoked to hear there are people out there who care about footwear as much as i do!
Been on a shoe journey after taking up running after my 50th birthday. Coming from the cycling world (28yr career) I appreciate the technicality of all these new shoes, and the in depth reviews Brett and Finn provide. It's also fun being completely new to something without any pre-formed opinions.
I run road in Endorphin Speed 3's and tried on the Endorphin Edge but it didn't feel right. Then I tried on the Tecton X2, Agravic Speed and Speed Ultra, and Ultrafly. Of those I ended up running in the Speed Ultra and Ultrafly, and kept the Speed Ultra.
I could feel the weight of the Ultrafly and despite the wide toe box my foot felt a little suffocated by the low volume and Vaporweave lining. The clear "toe bumper" also extends around to the ball of the foot and gave me bad blisters. Comfy step in, just not a fit for my foot.
The Speed Ultra was, and still is, just weird. I can't walk normally in them still! My true to size fit is a 10, but in these I actually went down to a 9 and it's perfect. I found that heel lock was eliminated after getting the right fit and playing with lacing. On the trail, like I said, I don't have anything to compare it to but these are just super fun. Turnover is fast, grip is high, and they are light. Most importantly they are comfortable, fit my foot and I love the LSP midsole.
If I had the funds and could justify two pair of trail shoes, the Agravic Speed would be awesome. they're crazy light, i'm sure they would be the rowdy brother to this shoe.
Thanks for finding the channel and for watching! I can totally see myself coming to this shoe in the same way you did. It's funny how great this Speed Ultra is to run in, and how weird it feels to walk in. Terrex did a great job with these Agravic Speed and Speed Ultra models. Running in both currently, and they do really compliment each other well. Comparison and full review of both coming soon!
This is actually very GOOD review. Verygood details mentioned
Thanks for watching! Glad you enjoyed it 🙏
Been waiting for this to drop this April. The Terrex already informed this from their insta last week I think. Been looking forward to this shoe and now this review!
Thanks for watching! This is definitely going to be one of the more innovative trail shoes of the year!
I got the Agravic Speed Trail model, this shoe is the real deal: I also have the Kjerag, and the Speed Trail beats it. First things first: Size down 1/2size from the previous version or your normal size. US12.5@10oz 1/2oz more than kjerag, so very light. More toebox room than the kjerag, not overly narrow across the metatarsals as the kjerag is. More and softer cushion, with a rocker that helps forward propulsion and makes it more 'fun' to run in than the kjerag. 8mm drop vs 6, I'd prefer 6mm for steep downhills. Same ungusseted tongue (very unhappy about this!) as kjerag, but smaller gaps in ankle collar & upper to let rocks in. Laces that don't come undone, unlike kjerag. The TST is happier on smooth to moderate trails, but I did 3hours on steep fairly rocky singletrack yesterday with no serious complaints, no toe-banging or underfoot pains. Do use heel-lock to keep the heel stable. $40 cheaper than the kjerag!
I never thought that the Agravic Speed would be a comparable comp to the Kjerag, but I think I agree with you on this!
@@ConversationalPace I wrote that comment after a 3hr run on less technical forest trails. After another 2hr run yesterday on a very rocky trail, I'll say they are not a great choice for that type of terrain -- not a matter of protection but not enough torsional rigidity for rockhopping for me, plus the softer stack and high drop become issues.
Just got them last week and have 60k in mine and pretty much completely agree with your takes. I have to force myself to not use it all the time because it handles everything I throw at it so well and is so much fun. Some additional observations: It is grippier in muddy conditions than I thought, better than a Slab Genesis and a Slab Ultra FDH for example.
The shoelaces are pretty special although mine got untied with a double knot which almost never happens but with these ones the lockdown didn’t change - definitely a pro and a con because lacing these up is, in typical adidas fashion, a pain in the ass.
Half size down could be an option for some because it is important that the narrowing mid foot of the shoe aligns with the arch otherwise the famous arch blister could be a thing in the shoe.
As a mid foot to forefoot striker most of the time I don’t have the running uphill sensation but landing further back I noticed that negative drop sensation, like a little bump you have to overcome. Will be interesting what the shoe does to the mechanics of people because it rewards landing further forward in a big way imo.
Keep up the great work absolutely love it!
This is an awesome recap and I agree with all of this! Thanks for chiming in about the sizing too, as you're right not aligning with the arch could cause some big issues since it's so pronounced. I hadn't gotten to take it in very muddy conditions, but that's good to know!
Hi, I would like to congratulate you on the review, and I can't wait to listen to you in the complete one, in the meantime I ask you if they seemed true to size, thank you.
Best regards.
I initially thought that they seemed a little long and sizing down was a maybe, but now I'm thinking that nearly everybody should be sizing down a half size
Tried it on, walked around, put it straight back in the box to return, one of the most uncomfortable shoes I’ve ever tried, road or trail.
But solid review, very robust and comprehensive, especially the comparison to other shoes and responding to questions.
Yeah I would have had a tough time making the purchase if I tried them on in store. Such a strange initial step in feel isn't going to win anybody over, so I can't blame you there!
Mine arrived a few days ago. I have my first 50 mile Ultra in 7 days time and I really hope these shoes help me get that distance done!
Nice!! Hope they work out for you and good luck!
Far from calling myself anything close to an ultra runner, but I've been eyeing these since November. Running warehouse, take my $$$!
Definitely not only an ultra shoe! I'd absolutely lace these up for races under a marathon length!
Llevo con estas un poco más de 100k, entre ellos una competencia de 42k, y las sensaciones después de los 25k de carrera fueron muy confortables. En las bajadas se comportaron muy bien. Si sentía falta de estabilidad en algunos momentos, pero creo que es por la falta de amaestrarlas.
¡Gracias por tus comentarios y por encontrar el canal!
(Google Translate)
Ordered mine yesterday; was waiting for this review!!
Stoked to hear your thoughts on them!
Love the channel and your in depth perspectives, can’t wait for the full review ! In the meantime, do you see a use case for these Speed Ultras for more middle to back of the back runners in a 50 to 100k race distance, or would the benefits come into play more for faster pace runners? Thanks for all your work!
Thanks for watching! We're recording the full review in a few days 👍. I think the Speed Ultra can definitely still be useful for middle or back of the pack as long as you get your feet used to the rocker of the shoe. There are definitely efficiency gains to be had with this shoe at all paces!
@@ConversationalPace Super helpful thank you!
@@ConversationalPace Quick update. I picked these up based on your initial review and response to my question and I love them! I’m a 54 yo middle of the pack (on a good day) runner and I’m getting the same 20 secs per mile improvement you mentioned in the full review. Also super fun to run in and surprisingly stable and nimble even on steep technical terrain. And I’m also noticing better, faster recoveries for my workout and long runs. As an older runner this is particularly helpful. My legs just feel fresher so I think this will help me improve my fitness over time as well. Never would’ve thought these were for me, but your review and response really opened things up for me. Thanks for all the time and effort you put it, makes a big difference!
Yes the faster recovery is perhaps the biggest benefit of these max cushioned shoes that doesn't get talked about enough! Glad they're working out for you!
@@cwengelkingReally appreciate your questions and comments. I’m close to you in age and midpack abilities and have been reading and watching reviews on this shoe like crazy. I love the Adidas Boston 12 for the road and the two seem similar to me in terms of midsole compound, upper, and fit. I was wondering if the Speed Ultra is too much shoe for me, but perhaps not. Thanks for sharing your experience.
Awesome review!! Just got my pair and can’t wait to take them out to the trails. Question for you: If you were doing a mostly dirt road rolling 100m (like Vermont 100), would you wear a trail shoe or a road shoe? Thanks!
I think the answer to that question is going to be very much a personal preference with my recommendation being the one that feels the most comfortable on your feet and has the smallest chance or creating any foot issues, blisters, etc. For me that would likely be a road shoe like the Saucony Endorphin Speed, as that one just checks all the right boxes for me
@@ConversationalPace Thanks for your input!
Great review. Just ordered a pair. Hoping they fit similar to the Adios Pro 3.
Report back! I haven't tried on the AP3, but a lot have asked for that sizing comparison
@@ConversationalPace confirmed. The size is pretty close to the Adios Pro 3. The Speed Ultra is slightly roomier throughout.
I always end up loving my adidas shoes! Maybe I should try this one next 🤔🙌🏻
The smiles per dollar is where the value of this shoe is! 😆
Very excited about this shoe that I've been waiting for Adidas to release for such a long while. Big fan of LSP on their road running shoes. About 80% of my weekly miles are on the road with the remainder on the trails, but I intend to make the ratio 70/30 or even more as time goes by and I believe these new Agravic Terrex shoes (Speed Ultra and Speed) will help me do that. Being in SoCal with desert-like conditions and mostly mild hills and smoothened and hard-packed dirt/gravel trails (unless I go out to the mountains), it seems these shoes are perfectly suited for such terrains.
Kind of bummed that the men's Speed Ultra's release has been delayed until 4/29 on the Adidas site. I ordered it a full-size up in women's size and will see how it fits. Ordered the regular Speed as well. Glad to know that the Speed Ultra doesn't have a carbon plate/rods. I've had the NB SC Trail, Endorphin Edge, and Tecton X (tried the X2 and returned it right away) and while they were good shoes and enjoyed getting some good miles out of them, I've become convinced that carbon plates are just not necessary or are even a hindrance for the trails. I especially dislike the feel of carbon plates when going downhill. The landings on jumps tend to feel quite harsh, even with softer foams.
Anyway, thanks for the review. I have a feeling that I'll like these very much. Seems like it'll be very good for road-to-trail excursions as well. I live in a very hilly neighborhood with asphalt and dirt trails crisscrossing each other in all directions, so a shoe that can handle both very well (which I found the NB SC Trail well suited for) will be a big plus.
Yeah I think that based off of everything you're searching for, this Speed Ultra checks a lot of the boxes! You definitely don't get that slappy carbon plate downhill feeling. I'm not sure if it's the plastic rods or the shape of the heel, but either way, it works! Hopefully the sized up women's works! Curious to hear your thoughts on the Agravic Speed when you get that as well!
Men's sizes are available on Running Warehouse!
@@NateCrail A little too late for my size, unfortunately... Thanks anyway!
Hopefully they're able to get a restock soon!
@@alexkhan2000 Darn!
Love your reviews, just one question. Looking at a shoe for OCC in Chamonix, would you consider this shoe for 55k or go with something like the Mafate Speed 4 or Tecton X2?
While I haven't gotten to take this shoe on the technicality of something like OCC, I do feel confident It would work for me at a race like OCC. As long as I was able to get in some bigger training days on similar technicality and course profile beforehand.
Plastic rods and stripped back upper totally remind me of the old Adizero Feather from like 10 years ago. That shoe was great for road running, and with a decent outsole probably would've made a nice trail racer.
Adidas had so many road shoes back in the day that would have made great trail shoes with just a little more tread. The Adizero CS was one of my favorite shoes of all time for trails. Thanks for watching!
@@ConversationalPaceAbsolutely! The old Adios 2 were amazing trail shoes, with decent grip. Hal Koerner famously wore them for most of his ultras, including a Hardrock win.
That's right, that was his go to shoe for the longest time!
@@ConversationalPace It really was a popular trail shoe. I did The Rut 50K the second year they held it, the year Killian was there, and I saw dozens of racers wearing them. The days of wearing marathon flats for trail running... Adios 2, New Balance 1400, Brooks Green Silence and Jamil Coury's old fave, the Mizuno Wave Musha! He even tried that bad boy at Barkley!
Surprisingly the the plastic plate cutouts actually serve a purpose allowing the shoe to stay more level on V-tapered single track
I'm a bit gutted with my experience in them. I ran two 10k runs on the same route with a mixture of broken steep downhill fireroad and regular road in them. I wasn't prepared for how lethally unstable they are on the broken fire road, and I've run ultras in the Saucony Endorphin Edge which got bad press for their instability. In fact I tried on my pair of Endorphin Edge after the second run in the agravic and they felt solidly planted and just as springy by comparison. I am a mid/forefoot striker having run in vibram fivefingers for about 7 years so I'm not sure whether it's me or the shoes. I'm baffled as to how narrow the scope of use cases for these shoes must be. Surely there are more than WStates and UTMB to take into account? . BTW I'm a 60Kg runner so maybe this plays into the experience in some way. I'm hoping they will bed in somewhat. Damn hype-cycles....I saw the Jester running in a pair of what looked like 10 year old Hokas at the finish of the Cocadona 250 yesterday (And I think the winner was wearing Huaraches sandals...) and it reminded me that the whole quiver and seasonal optimisation is mainly BS I need to simplify again instead of feeding into this nonsense
Dang that's such a bummer to hear! It's got to be something with the shape of the shoe just not matching up with your foot the way it should. I'm about 60kg too and feel great on moderate technical terrain in this shoe. Better than the Endorphin Edge for me. To your point, Adidas designed this shoe with mostly Western States in mind, and it happened out to be good enough for UTMB for most of their pros. The initial concept was to try and make the perfect shoe for running downhill in on mellow terrain. The more people I hear from about this shoe, the more it is one of those love it or hate it type fits due to how specific everything about this shoe is. I think there's room in the space for shoes like this, but there absolutely still needs to be a (larger) market of shoes that are very well rounded, because you're right, a trail runner should be able to get by just fine with 1 or 2 pairs of shoes in their rotation and not 8
@@ConversationalPace Thanks for the response. I won't give up on them yet. I'm going to test them on a 80k solo run across a mix of terrain and elevation at the end of the month and if they prove themselves there then we're good to go
Summit Vectiv Pro comes to mind. Any comparison thoughts? Vectiv is def rockered out.
Really hoping to get a Vectiv Pro 2 soon to do some comparison miles. I feel like that's going to be one of the closer shoes to this one.
I have both, the Vectiv is wider, especially the toe box, and more comfortable, more plush, but slightly heavier. The vectiv has a much wider heel for downhill. I can’t imagine wearing the Terrex on anything more than 50k. Best to wait for the tecton x3. I would also ignore all the “oh this professional athlete won this race wearing them”. They likely would have still won the race wearing flip flops.
Thanks for the comparison! I agree, a pro winning a race in a shoe doesn't make the shoe good. It just means the runner is good 😅
I can’t wait to hear a direct comparison to the TNF Vectiv Pro 2, but it sounds like the Vectiv pro will still be better for longer races.
Just got the Vectiv Pro 2 in the other day, so will start logging miles and report back!
I've really enjoyed the Terrex Speed Ultra (Tim Olsen shoe) but always wanted a little more cushion and more supportive heel for longer runs (50k+). Have you run in that shoe? How does the fit/feel/ride compare? Thanks, great channel!
I have tried it on in a store, but never run in it. This Agravic Speed Ultra is a totally different shoe being so much higher cushioned and having a really aggressive rocker. The Terrex Speed Ultra is much less cushioned and lower to the ground, which will help with more technical terrain giving you more ground feel. The Agravic Speed Ultra doesn't have much ground feel at all and takes the bulldozer approach to the trail
This makes a lot of sense. Lightstrike Pro always needs a break-in period.
I had never run in a full Litestrike Pro shoe before and figured it would be great right out of the box, but I was pleasantly surprised when It kept feeling better the more I ran in it!
Been waiting for this!
The X shape is putting me off a bit. a narrow midsection market the shoe lighter but it will reduce torsional stiffness.
I have been waiting for a superblast for trails, with a bit more rockered heel section.
I dunno if I should push the button on this one. Caldera 7 (hardly used these days), Speedland PG:GS and the awesome Trabuco Max 2 are the only trail shoes of 2023 that have survived my rotation. After I heard you say someone took the Bostons a lot on the trails I started to I take the Superblast on hard dry/wet trails with no larger stones.. really really good.
Am not a Hoka fan (speedgoat 5 is a dead boring shoe IMHO, I use the GTX for hiking), but the Tectron 3 I have put high on the list for 2024, it will take until the fall unfortunately.
Does the Agrivic beat the awesome allround Trabuco Max 2? , or should look at it as a predominant downhill shoe (I'm a lot in the alps)
I think that the Trabuco Max 2 and this Agravic Speed Ultra don't have a ton of overlap, as I feel much more comfortable at all day (or even multi day) pace in the TM2, whereas the Speed Ultra wants to go fast. They're both nice going downhill, but one edges the other out for me depending on the pace and effort I'm descending. Perhaps the upcoming Agravic speed will be more what you're looking for still having a Litestrike Pro midsole, but no plate, and built on the last of the Boston!
For off chamber / seirously outsloped sections of trail, does that minimalist upper keep your foot on top of the midsole? That rocker profile looks a bit crazy. Thanks for your guys^ reviews.
I haven't taken them on anything too off camber, but for the moderately off camber trail I have been on, they're not the best but get the job done. The raised midsole sidewalls do add a bit more support regarding keeping the foot in place
Would be curious to hear a comparison to TNF Vectiv Pro 2
Agreed! Hoping to review the Vectiv Pro 2 as soon as we're able to secure units for testing!
i am running the Zermatt Half marathon in a few weeks. I am a road runner. Its basically 1000 meters climb with a 14 km steep climb mostly on road and hard pack trail - then 4 km across boulder field single track and gravel and then 3 km on a 15-20% climb on hard pack. Some run in road shoes. I was thinking of the Agravac Speed or the Solomon S Lab Pulsar 3 or the Saucony Edge - what would you consider? BTW minimal amount of downhill - its only up
for a race that's mostly uphill, I would probably be in the Salomon, because grip and weight are the two factors that I am thinking about for a race profile like that. Definitely a very personal preference though. I think the Pulsar or the Agravic Speed are great choices but for pretty different reasons.
Great review, thanks! Can you compare with Salomon S/Lab Genesis?
The Genesis is much lower and more traditional feeling being medium cushion and not much for a rocker. I'd pick the Genesis for more rugged and technical terrain and then use the Speed Ultra for anything more mellow and faster.
Thanks
So glad you got to beta-test it for the BC60k - you were lucky that mud was frozen, brother, because for the 100k? Total fell meets Florida/Georgia clay-fest. Great review!
Thanks for watching! Yeah, I was picturing what that would have been like thawed out, and I was very grateful that it was frozen instead😂
Thanks!
Right on! Thanks for watching!
Great review, I just purchased a pair but the right is 10grams heavier than the left I’m wondering whether I should exchange them for another pair, I’m a uk 10 - the left is 278 and the right 288 - nothing to worry about ?
Personally, I wouldn't worry about. That's right on the edge of the acceptable limit, but in a UK 10 and for a trail shoe, I doubt that would be noticed. I also wouldn't have the patience to exchange them 😂
Due to the instability at the heel it was an instant return. 😞
Dang that's a bummer😖
Be interesting how this shoe will feel for hiking big inclines. As we saw it on all adidas athletes at UTMB, the rocker makes me feel it would feel weird hiking in it (might be a good test for the full review)
Yeah I will definitely take it on some steeper trails that necessitate more hiking. The one run I did that I had to hike some, it felt really strange, but maybe that's something I need to get used to and it's not a detriment to my uphill efficiency. More testing to come!
Finally. Now THIS is a trail super shoe. You can tell by how unpleasant it is walking back to your car. 😺. That and it’s really fast. Good on downhills, as advertised. No issues on the uphills. I race road marathons in the Adios Pro 3, and this upper is almost as weird. Tongue pads will cure the lace bite. And I know I will eventually get a proper lockdown. Lightstrike Pro FTW. I know it can handle distance.
hahaha yes it's definitely a strange shoe to walk around in, which is a funny indicator that it's awesome to run in. Agreed, Lightstrike Pro FTW
I just did Desert Rats 50k in this. Perfect for this type of race. Nice and grippy on the rock slabs. A couple of near ankle rolls but nothing unusual. I did start to get a blister on right arch and had to stop to put on a bandaid, which worked. Likely not broken in sufficiently. I also anticipated a hot spot on the left toe and put on one of those rubber toe rings and no further trouble. Tongue pads did help getting a good lockdown. This will be my dry conditions race shoe. BTW I wore the Ultraflys through the airports on the way to/from the race (as a backup). It was perfect for that. 😉
How much did you run in them before the race? You're right probably not broken in enough. So you chose these over the Ultrafly? Do you feel like that was the right call?
How about vs the Asics Fujispeed 2? Thats quite a fast carbon plated trail shoe.
I haven't gotten to try the Fujispeed 2 out yet, but from what I've gathered from a few friends who have tried it, the Fujispeed 2 is going to be a little lower to the ground and more 'normal' feeling with the shape. Having run in FF Blast + foam shoes before, I have a hunch that this Agravic Speed Ultra is going to be a little more responsive. Now if Asics released a trail shoe with some FF Blast Turbo in it, that would be a different conversation!
Got blisters on my first run on both my archs. 😢 Put different insoles in to try and stop that.
Aww dang that's a huge bummer. Definitely something that can happen with such a pronounced rocker and a feeling where the high point of the shoe is right at the arch🥲
I know athletes wore these at UTMB that being said I just received my pair of the non baller agravic speeds and I'm curious your thoughts on how these will do on a technical east coast trail. I try my best not to return a shoe after running in them but first impressions were similar you yours in the heel rocker is a very odd feeling!
I am so curious to see how the Agravic Speed compares. I have a hunch it's going to be the better technical shoe as well as a more sustainable daily trainer for most.
True to size or half down? I've seen both recommended
It's definitely a bubble shoe for sure. My pair is a 10, which is my regular size, and it's just a hair longer than what a true 10 would be. I would go down a half size if I was going to be training and racing for shorter and faster races (probably trail marathon or shorter) to have the additional lockdown. For the training and racing I'm currently doing (50km and up), I would stick with my regular size to have the room in the toe box that's comfortable for me.
How does this compare to the Vectiv Pro 2?
That's one of the last shoes I haven't gotten to try out yet and would love to compare those two! Just based off what I know and have heard, the Vectiv Pro 2 is going to have a shorter and steeper rocker at the toe. Cushion wise, it'll probably be pretty close, as the dream foam is a close feel, but just a little firmer
I just got mine. Tried them on. I sized down a half size to 8m… I almost think I could size down to a 7.5m. Anyone else getting that? There is still
Wiggle room
There is definitely some people who are going down a half size. I probably could have as well, but the lock down was still great in my regular 10, even though it is just a touch long
I had to do the same, waiting for the replacement smaller pair.
@@tomharvey-run I got my 7.5 in, full size down!! Raced a 50k in them last weekend, they were perfect!
Would this be a "heel striker's" shoe??
I found it almost hard to heel strike in because of how pronounced the rocker is in the heel. It throws you onto your midfoot so fast, I feel like it can either be awesome for a heel striker due to helping speed up the gait, or it would be awful because there isn't enough stability in the heel to properly absorb that impact. Could totally go either way though and it's hard to predict which way because it's such a unique feeling shoe.
Would this shoes be a good choice for Utmb tds?
For me personally, it wouldn't be my first choice, because I don't love how this shoe feels when hiking. The Agravic Speed (on paper at least) seems like a more compelling choice. We are planning to review that model as well once our units arrive, so we'll be able to say more confidently what race it might be best suited for
Cool! appreciate for the honest feedback! I might buy the speed one first. Thanks 🙏🏼
@@terencenicolasgo2040 ruclips.net/video/NDOq4A44z-A/видео.htmlsi=DdjUAie2KBJkqear
Conversational Pace, directed by Aaron Sorkin
All about that walk and talk!
How's the sizing?
Seemed pretty true to size, maybe just ever so slightly leaning on the long side. Not long enough to need to size down or anything
@@ConversationalPace Yeah, I tried a few sizes today at my local Adidas store. It has definitely a roomier toe box than the Adios Pro 3. In the latter one I prefer an US 12.5, but in the Agravic Speed Ultra I would stick to 12.
It somehow made it's way to my doorstep. 3 runs in:
the best worst shoe, the worst best shoe, the best best shoe, the worst worst shoe.
This shoe is 4 seasons in a day, it has multiple personality disorder.
I needed to learn to run again, almost fell a few times especially on the straight.
I had great legs after a fast run with a lot of steep uphill and downhill but lower backpain.. a first.
I almost rolled my ankle 3 times in a run, I never roll my ankle, like ever..
I have heal slip, I never have heel slip, again like ever..
So far it seems to be a great shoe to go up and down, I am not decided on all in between.
The upper is a plastic hot mess (I wish Asics could just release a superblast with a trail sole), its a mesh shoe but feels HOT, the heel is way worse than the Altra Mont Blanc, the heel section of the midsole/sole is just way too narrow.
The shoe pushes you otr supinate, making ankle rolls more likely.
Fit: seems to be long, might have been able to use 1/2 size down (which I never had to do with any shoe brand)
For the rest it is awesome Adidas just shouldn't have listened to the Pro runners, they made the same mistake now which Pepsi and Coke made in the past.
Thanks for your feedback! I've definitely had some hot and cold runs with this shoe, but not quite like this. So perhaps it'll depend on the day, but what's the 0-10 rating with 10 being the best shoe you've ever worn?
@@ConversationalPace I seriously don’t know. The shoe feels very fast, but I don’t see it in my segment times, perhaps yet..
I ran the same roads yesterday with the superblast and felt way more comfortable and was faster than the day before with similar HR
since you mentioned someone running trails with the Boston 12, I started that as well but then with the superblasts
This should could have been a 10 if the heel would be way wider, like the caldera, Speedland and the upper would have been good.
It is a super interesting shoe though
@@ConversationalPace ow and what about the fit, is it long?
My regular size 10 is just a little long. I'd probably go 9.5 for 50k and shorter, and then a 10 for anything over 50k
@@ConversationalPace I went home yesterday after 3k, muscles were tightening up. Switched to the speedlands, way more comfortable.
But a few KM in you start feeling the weakness of the speedland in comparison, the rocker is missing.
On the agravic there is no lock on the heel for an gaitor, which is somewhat stupid for a trail shoe. I assume Finn agrees.
Not giving up on this shoes, there is too much coolness, will run it once or twice a week for the next weeks.
CARBON FIBER SIMPLY SNAPS. From F1 cars to Handlebars to Crank Arms. Super overrated. Just have to change the "chemistry" with plastic to make it firm or flexible. But for sure.. it'll last way longer.