I had a SB5c for 5 years....when i got a new SB140, i kept my expectations low, but i broke every single PR i had on my 1st or 2nd ride with the 140. Its a huge leap forward, makes the rider feel supremely confident
So today I came back to this video after thinking about changing my X2 to an ÖHLINS Coil shock , and oh.. well.. Linear Coil is not a good idea as you said , so if talking about progressive coils what would be your opinion on that? Thanks , Pozi (aka pozitivi)
Great video! I’ve been waiting eagerly for the SB165 analysis and I’m really intrigued to see how the figures compare. I’ve had my 165 for several months now and I just can’t believe how well it performs: unmatched on the downs, but no slouch on climbs either.
You should look at the new Niner RIP 9! It has a radically different suspension and is praised by everyone who rides it. I’d be interested in your analysis of the geometry! 🍻
I’m still thrashing a 2014 SB66 with fox floats front and rear, it climbs like a beast and is extremely stable and comfy on all tracks. The switch technology they designed was ahead of its time. I can’t even imagine what these new models would be like. I love my old 26er, if i rode a new 150, bike I don’t think I could go back.
What a great explanation! Can’t wait to hear your thought on the SB165. I’m constantly surprised by how easy it is to climb on what -by any other measure- is a DH rig.
These suspension analysis videos are awesome, please keep it up! Super curious to hear how the 165 compares to the 150. Edit: btw it'd be absolutely fantastic if you did a "Walmart bike challenge" analysis/comparison to a high end bike. Please consider it 😉
Thanks! While not the same, the Optic is going to have a very similar analysis as the Ransom unfortunately. It is very popular though. It might make it's appearance in another style of video I'm thinking about.
I’m loving this video series. It’s amazing to see how things shift and change throughout each bikes travel. Any chance you could review a Mondraker Dune?? (My current bike)
Fantastic reviews, i think everyone wants one thing more that you have not touched on from the content i have seen. That is the best suspension design/company for the application/trial. For example Specialized Enduro is best for........... kind of trail, etc. Where as a Yeti SB150 excels in terrain type................ . To take it even a step further, maybe have a chart that shows the best bikes and designs for climbing all the way to descending, that would be incredible.
Thanks for the suggestion. I've thought about something like that, but I feel like I would get so many competing comments about which bike actually rides better that I'd rather just put the info out there along with my opinion and let viewers decide :)
@@TrailPOV I'm not sure if you could Wizard something up with the published spring rates? Yeti with air shock is great, there just always that curiosity!
@@TheBlutark34 That would be cool as each shock definately has its own characteristics. If you know of a source who publishes force vs displacement for different shocks please let me know!
AWESOME video! Aloha fellow shredders. Equivocating between the Yeti SB150 and Kona Process 153. Reviewed the analysis on the 153 and she looks nice. Appreciate any f/b from riders who run the 153. Mahalo loa nui 🏄♀️ 🏖 🦈
@TrailPOV - are you using linkage pro X3, or simulation software, to determine your geo/kinematics for each mtb? started using the persinal ver of X3. super slick!
@@kenw8875 I am using my own kinematic software and CAD data supplied by manufacturer. Gives me better control and understanding of where the numbers come from.
I seem to be oogling two bikes with very different philosophies. The SB130/150, and the Knolly Fugitive LT seem to be on the short list but have not ridden either. Living in the southwest there is lot's of opportunities for technical rocky climbs or session lines where low anti-rise and anti-squat will benefit in the name of active suspension and traction which nods to the Knolly. The Yeti seems more efficient in all other situations. Hopefully in a couple months I can actually demo some stuff. Thanks for the analysis.
I’m looking into Guerrilla Gravity’s Smash bike and it seems to use a 4 bar, Horst link design. Hopefully you guys do a 4 bar/Horst link video in the future. Keep up the solid videos!
Hi David. Thanks for the compliment. I have previously done a 4-bar setup for the Ransom: ruclips.net/video/G-AbuCDKk9g/видео.html. Of course every bike is slightly different in their implementation based on pivots etc, but should give you food for thought.
I generally enjoy your videos and animations, as long as they are objective. In this one you revealed a very strong bias before the analysis was even presented and it came off a bit misleading. Some aspects of the bike were a bit over-stated: • Richie Rude does not win races simply due to the bike he rides. There have been many EWS winners on multiple suspension platforms including DW, Horst, and single pivot. • Pedal bob can be manifested in either compression OR extension of suspension relative to chain forces and mass transfer. The high AS values on the Yeti certainly do not induce any “less” bob than a more active system, it just exhibits it in the opposite direction. This will negatively affect technical climbing ability, creating the feeling of being “hung-up” over larger square-edged obstacles. • Your comment on pedal kickback being low in deep compressions is irrelevant. On paper it is there, but in the real world no one is applying chain tension by pedaling through complete bottom-outs. Antisquat is always tuned for the USEABLE travel range, regardless of suspension system. • Yeti’s anti rise values are extremely average. They’re not really even worth noting as a standout feature of the bike. • The “single pivot” plot that you use in your leverage ratio comparison is misleading. Virtually all single pivot bikes now use a swing or rocker link to drive the shock, allowing for drastic tunability of the leverage curve. It seems that you are trying to throw single pivots under the bus, much like MTB marketers have done for the last decade. • Lower leverage ratio = LESS small bump sensitivity. More force is required to overcome the spring force and initiate compression. Also, the shock oil is forced through the damper at higher velocities, which creates more heat buildup. This offsets any volumetric or frictional advantages. • Yeti’s low, linear leverage curve should be considered outdated at this point. It was a nice experiment but Specialized, Transition, Ibis, Orbea, Norco, Santa Cruz, and others have all moved to higher leverage ratios with more progression in their frames for the 2020 season. There is a tipping point, but in order to get the most out of coil or air suspension for more riders, there must be more progression built into the linkage design. • There is no magic pill or secret sauce in suspension design. There are only compromises and decisions to make as to which ones suit your end users’ needs. Smooth climbing vs. technical climbing, descending in rough vs. sprinting on the motorway, steep vs. flat, tall/heavy riders vs. featherweights. These are all mutually exclusive and must be considered during the design process. Each brand has their own “ride quality” philosophy and generally stick to it, even if it’s not optimized for all riders. It’s as simple as that.
Very interesting points you make. The one in particular is the lower leverage ratio = less small bump sensitivity. During my reading it appeared that lower LR = lower pressures = lower seal friction as I had indicated, which based on my background I can understand why they would indicate this. Furthermore, while you indicate that the oil is forced through the damper at higher speeds, which I agree with, there is also less damping forces overall in the system due to the stroke being longer for a given wheel movement thus offsetting heat build-up from the speed. Obviously the number of repetitive hits and size of them also plays a huge role in the heat buildup.
Hi! Great explanation! Can you do a video on a single pivot such as the Orange Alpine 6? I know most people think it is old technology but I like how you quantify the differences between each design and the single pivot is where a lot of brands and early mountain bikers started.
A single pivot design is not necessarily perfectly linear. While not as tunable as other designs, by changing the shock mount, it can be also slightly regressive or progressive. The one with the most progresivity that I know is Orange 324 (2.64 to 2.4).
Agreed....as you will see with a soon to be release video. A simple single pivot like the orange is flat linear, but if you place the shock at a weird angle you can get it to have a sloping linear, and if you put linkages in then you can end up with really weird leverage ratios.
@@TrailPOV Nice. I will definitely follow! Regarding the linkage driven single pivot designs, like Evil or Kona for example, I always wondered why not just going to a 4-bar design where additional to the leverage ratio, you can also tune the IC movement during travel, if anyway you are loosing the biggest advantage of a simple single pivot, which is simplicity and maintenance. Maybe you can address also this in the upcoming video. Cheers!
Single-pivot bikes don't just inherently have a perfectly flat leverage ratio. They tend to be very close to flat on most designs, but it's simply because they're designed that way. By nature it's very very difficult to have a significantly progressive leverage curve on a single-pivot bike, but it's very easy to accidentally make them significantly regressive - as a result, when a single-pivot bike has a nearly flat leverage ratio it's probably because the manufacturer took significant care in avoiding a regressive curve, instead "settling" for a flat curve. It's pretty tempting to think that since a single-pivot is a simple lever, the mechanical advantage of the system is always constant and therefore results in a perfectly flat line, perfectly constant leverage ratio all the time. However, when looking at it as a lever only the component of the force exerted by the ground that is perpendicular to the swingarm line actually goes into actuating the shock, and only the component of the force of the shock perpendicular to the main pivot/shock pivot line goes into resisting the motion of the swingarm. Orange bikes (arguably the most ubiquitous single-pivot bikes) do have an almost flat leverage ratio: their shock is positioned very close to perpendicular with the main pivot/shock pivot line (and in fact I believe it crosses parallel at some point in its travel). However, if you look to some older examples such as the Cannondale Rush from 2010 or the Orbea Occam from around the same time period, they have the shock mounted at a rather extreme angle to the main pivot/shock pivot line, and that angle only gets even more extreme through the travel. That means the component of the shock's force that goes into resisting the motion of the swingarm reduces rather drastically as the bike moves through the travel, and the leverage ratio increases in a regressive design. This has been confirmed with linkage analysis software: the 2010 Cannondale Rush has a ~2.56 leverage ratio at full extension and a ~3.13 leverage ratio at full compression, for a regressivity of 22%.
It is an extremely good point you raise....I kinda figured someone would bring this up. It is true there have been several bikes with oddly place shocks with single pivot bikes, but I was trying to make a generalization for how most modern single pivot bikes respond. But a very valid point you make 👍
@@TrailPOV ah, fair enough. I haven't seen a true single-pivot in years without a flat leverage curve, so I think at this point that's a pretty valid generalization to make. Excellent analysis on the Yeti! I actually had no idea the anti-squat dropped off so much towards the end of the travel, and now I want one.
I've got one, the tune of the shock is key, amazing with air, coil unreal. Sick bike, only goes well at speed but not nervous. Fuck the price but recommended
Love your videos. So much effort in these. Could you do one on Niner Rip 9 RDO? CVA suspension? Super curious how this suspension system compares to the competition. Thank you!
Waiting for the SB165 comparison. I tested both bikes assuming that I would like the SB165 more due to the smaller tires, but I felt the coil shock did something to the bike that ruined the feel. Just curious to see if science backs up my real life experience.
Great videos. I have a suggestion though. You should change the scale on the leverage ratio charts to whole numbers like 0 to 4; not just a zoomed in section that makes it look like the LR is changing more than it is. It is somewhat misleading to show graphs this way.
That is a fair point. I know with my last video the Kona looked very wavy until I plotted it on a 0-4 axis and then it became apparent it was actually flat.
Can you suggest sone good Enduro or trail bike can with geometry and suspension system be able to climb the trails good? Not necessarily new models. Thanks
What do you think of the stress dispersion of the rear triangle to the pivot bearings? It seems as bearings get more dirty and slower, they wouldn't be able to disperse energy to the shock fast enough and take too much shear stress? Particularly that lower bearing linked to the infinity switch.
Unfortunately I don't compare shock absorbers because there are soooooo many setup options and most shock providers don't provide much technical info on their shock response
Ok , understood . Thanks . in this video Sb 150 you say you wouldn't recommend a spring shock for this bike . how about the Sb165 with come with a spring shock . if possible I would like your opinion thank you
The SB165 has a slightly more progressive leverage ratio with a very progressive end stroke, so you could probably put on a spring shock without issue. It'll have good small bump compliance due to the shock and excellent bottom out support from the leverage ratio.
Great explanation of how the switch infinity works... Can you do a review on the 2020 specialized enduro please as I'm struggling to decide on which one to get SB150 or Enduro....?????🤔 Thanks.
@@chopper2318 Queue is longer than that. However if you go onto my Patreon page there is a way to jump the queue if you choose to become a patron in my top tier....might be worth it to you to get the info.
Hi - I’d love to see your update on the new SI for the updated 160 .. does the extra 10mm provide better Marketting or does it improve the SI performance?
Great info as always, just so I understand this correctly, is that considered the lower link where the swingarm travels lightly up or down keeping it on a straight axle path, if so what is the benefit of all the extra engineering and material as opposed to a simple link? Am I way off on what this is doing and understanding the benefits? Thanks
If it was a simple pivot at the bottom it would be linkage driven single pivot. By including that moving link, even if small movement, it creates a instantaneous centre line that extends in either directly thereby allowing the IC of the suspension to move during the travel resulting in different anti-rise and anti-squat characteristics than a normal single pivot. If you watch my latest video you'll see the difference :)
What is the relationship between the size of the chainring and the antisquat and anti rise? I know increasing the chainring size decreases antisquat, but what does it do to anti rise if anything? Thanks. I love your kinematic analysis videos.
I have a SB150 and fitted it with a DHX2 running a Canecreek Progressive coil. And I friggin love it, great small bump and good bottom out resistance, what more could you ask for :)
I have an sb130 with a push elevensix. You had advised against a coil. For those who already have a coil, are there any compression settings which can improve the kinematics of this bike with a coil?
Very interesting! So the whole slider is designed bigger as needed... haha. Looks cool anyway ;) Did you think about a calculation of the new Specialized Enduro kinematics? It felt different to anything I tried yet, in a sensitive and active way.
It would be interesting to hear your views on the pros and cons of high vs low leverage ratios. It seems to me that many of the bikes today run fairly high leverage ratios across the board from short to long travel bikes. If the leverage is the same from sag on, I wonder how differences in leverage ratios prior to sag impact ride feel. Does it matter if you need to get to say 30% sag regardless?
The high leverage ratios to begin with means the shock doesn't move much for a lot of wheel travel so when you're chattering over small bumps and unweighting the bike, the suspension is not heavily hindered by damping forces. The high leverage ratios overall means you need a lot more pressure in the shock for the same weight rider to support them so if you are a heavy rider it's better to get a bike with lower ratios. While you typically pedal at sag, when going downhill you should use both below and above sag regularly.
@@TrailPOV Thanks for the reply! In this video, you note that a lower leverage ratio offers better small bump compliance because you can run lower air shock pressure. Many of today's bikes seem to run higher leverage ratios in the name of small bump compliance. Which leverage ratio would you say offers better small bump compliance? High leverage, but more pressure or low leverage, but less pressure?
@@richchin5163 For an air shock the first part of the travel is very firm due to the sealing so a high leverage in this region is good to overcome this friction more easily and provide a supply first part of the stroke. Once you're in the mid stroke the high leverage ratio isn't as critical as the dynamic friction takes over and you just need enough pressure for you to be able to use your travel. Having too low a pressure for your weight isn't beneficial. And having a really high leverage ratio in the mid stroke isn't beneficial either.
Do you have any thoughts on the friction of the seals on the Switch Infinity Link altering suspension performance? I ask because my wife's SB100 seems especially sticky, and she's a lighter weight rider so she doesn't have a lot of air pressure in the shock pushing back.
In general running a shock at low pressures with lightweight riders means the stiction on the suspension is more pronounced compared with overal force required to activate the suspension. Same reason why motorbikes feel sooooo plush....their sprung weight is easily able to overcome the static friction. The friction doesn't increase significantly as the pressure inside the suspension goes up (there's a high minimum value)
Does anti-squat add any backward force to the pedals, as if you're using some of the force on the pedal to hold yourself up off the ground and not squat?
This review makes me fall in love even more with my sb150. Great explanation man!!!
Thanks very much....and awesome choice in bike!
I had a SB5c for 5 years....when i got a new SB140, i kept my expectations low, but i broke every single PR i had on my 1st or 2nd ride with the 140. Its a huge leap forward, makes the rider feel supremely confident
Not surprised to hear it. Enjoy!
This is one of the more important videos for a YETI owner , good job !
Thanks!
So today I came back to this video after thinking about changing my X2 to an ÖHLINS Coil shock , and oh.. well.. Linear Coil is not a good idea as you said , so if talking about progressive coils what would be your opinion on that?
Thanks ,
Pozi (aka pozitivi)
Great video! I’ve been waiting eagerly for the SB165 analysis and I’m really intrigued to see how the figures compare. I’ve had my 165 for several months now and I just can’t believe how well it performs: unmatched on the downs, but no slouch on climbs either.
Nice bike!
Another fantastic breakdown! Your ability to consicely deliverthe information in regards to pertinent subject matter never ceases to amaze me!
Thanks very much!
You should look at the new Niner RIP 9! It has a radically different suspension and is praised by everyone who rides it. I’d be interested in your analysis of the geometry! 🍻
I’m still thrashing a 2014 SB66 with fox floats front and rear, it climbs like a beast and is extremely stable and comfy on all tracks. The switch technology they designed was ahead of its time. I can’t even imagine what these new models would be like. I love my old 26er, if i rode a new 150, bike I don’t think I could go back.
Nice!
These videos are rad, get this guy more subscribers. I can't wait until he starts doing linkage forks, Trust, Structure SCW1, etc..
Thanks!
Wow, I'm astonished with how precise an detailed this video is. Amazing work!
Thanks very much!
I’ve watched the video 3 times. Love this videos!
Thanks!
What a great explanation! Can’t wait to hear your thought on the SB165. I’m constantly surprised by how easy it is to climb on what -by any other measure- is a DH rig.
Thanks for the feedback.
Its not a dh rig 😂😂
Great video. I think Yeti and Ibis make the best climbing bikes. Just rode the SB150 and HD5. Both are amazing.
A lot of people have commented on their awesome climbing ability.
These videos are so well done
Thanks very much
Great explanation , glad to ride with the SB150 :)
These suspension analysis videos are awesome, please keep it up! Super curious to hear how the 165 compares to the 150. Edit: btw it'd be absolutely fantastic if you did a "Walmart bike challenge" analysis/comparison to a high end bike. Please consider it 😉
Thanks very much. Haha...Walmart vs high end bike is an awesome idea!
Commencal’s high pivot point pleaaaaaaase!!!!
I 'liked' this before I finished watching it. Please do the much revered DW link next!
You betcha.....dw-link is coming
i wanted to say this too
This series deserves more respect. ✊ Any chance you could do one on the new Optic?
Thanks! While not the same, the Optic is going to have a very similar analysis as the Ransom unfortunately. It is very popular though. It might make it's appearance in another style of video I'm thinking about.
Trail POV good to know! 🍻
Very good analysis. Thank you. I hope you can continue
Thanks. You can join me over on Patreon if you'd like more bike data #shamelessplug
Great video. Would be interested in a single pivot review just to see how those work also
Thanks very much. I was actually already contemplating doing a single pivot vid :)
switch infinity is a single pivot design. it won't have any difference with a more traditional single pivot incarnation.
I’m loving this video series. It’s amazing to see how things shift and change throughout each bikes travel. Any chance you could review a Mondraker Dune?? (My current bike)
I could add it to the growing list
Thank you very much for making these videos. This information is important.
Fantastic reviews, i think everyone wants one thing more that you have not touched on from the content i have seen. That is the best suspension design/company for the application/trial. For example Specialized Enduro is best for........... kind of trail, etc. Where as a Yeti SB150 excels in terrain type................ . To take it even a step further, maybe have a chart that shows the best bikes and designs for climbing all the way to descending, that would be incredible.
Thanks for the suggestion. I've thought about something like that, but I feel like I would get so many competing comments about which bike actually rides better that I'd rather just put the info out there along with my opinion and let viewers decide :)
Would love to see one of these videos on the new Evil Wreckoning
These are awesome! I'd love to see SB130 and Switchblade v2.
Thanks for the feedback
Great video series. You might have a look at Poles Evolink suspension, where the lower link rotates around the bottom bracket.
Thanks for the idea.
So detailed I love it. Only fair we do the DW-link on the ripmo now!!
Hmmm....I wonder what my next bike was already going to be
@@TrailPOV some of the progressive coil marketing I've seen is directed at yeti/Ibis riders. Could be interesting to try.
@@TheBlutark34 Certainly would be plush! Might have to try a few progressive coils before finding one that allows you to hit the big stuff.
@@TrailPOV I'm not sure if you could Wizard something up with the published spring rates? Yeti with air shock is great, there just always that curiosity!
@@TheBlutark34 That would be cool as each shock definately has its own characteristics. If you know of a source who publishes force vs displacement for different shocks please let me know!
AWESOME video!
Aloha fellow shredders. Equivocating between the Yeti SB150 and Kona Process 153. Reviewed the analysis on the 153 and she looks nice. Appreciate any f/b from riders who run the 153. Mahalo loa nui 🏄♀️ 🏖 🦈
Thanks very much! Happy trails!
@TrailPOV - are you using linkage pro X3, or simulation software, to determine your geo/kinematics for each mtb? started using the persinal ver of X3. super slick!
@@kenw8875 I am using my own kinematic software and CAD data supplied by manufacturer. Gives me better control and understanding of where the numbers come from.
I seem to be oogling two bikes with very different philosophies. The SB130/150, and the Knolly Fugitive LT seem to be on the short list but have not ridden either. Living in the southwest there is lot's of opportunities for technical rocky climbs or session lines where low anti-rise and anti-squat will benefit in the name of active suspension and traction which nods to the Knolly. The Yeti seems more efficient in all other situations. Hopefully in a couple months I can actually demo some stuff. Thanks for the analysis.
Anything with two wheels is awesome! Glad I could provide some small insight.
I’m looking into Guerrilla Gravity’s Smash bike and it seems to use a 4 bar, Horst link design. Hopefully you guys do a 4 bar/Horst link video in the future. Keep up the solid videos!
Hi David. Thanks for the compliment. I have previously done a 4-bar setup for the Ransom: ruclips.net/video/G-AbuCDKk9g/видео.html. Of course every bike is slightly different in their implementation based on pivots etc, but should give you food for thought.
Great review as always, still waiting for that SB165! I ordered a new shock with a hydraulic bottoming circuit; I hope it’s a good choice.
Thanks. There's a lot of bikes in the queue :) Hope you're enjoying the SB165 so far!
I generally enjoy your videos and animations, as long as they are objective. In this one you revealed a very strong bias before the analysis was even presented and it came off a bit misleading. Some aspects of the bike were a bit over-stated:
• Richie Rude does not win races simply due to the bike he rides. There have been many EWS winners on multiple suspension platforms including DW, Horst, and single pivot.
• Pedal bob can be manifested in either compression OR extension of suspension relative to chain forces and mass transfer. The high AS values on the Yeti certainly do not induce any “less” bob than a more active system, it just exhibits it in the opposite direction. This will negatively affect technical climbing ability, creating the feeling of being “hung-up” over larger square-edged obstacles.
• Your comment on pedal kickback being low in deep compressions is irrelevant. On paper it is there, but in the real world no one is applying chain tension by pedaling through complete bottom-outs. Antisquat is always tuned for the USEABLE travel range, regardless of suspension system.
• Yeti’s anti rise values are extremely average. They’re not really even worth noting as a standout feature of the bike.
• The “single pivot” plot that you use in your leverage ratio comparison is misleading. Virtually all single pivot bikes now use a swing or rocker link to drive the shock, allowing for drastic tunability of the leverage curve. It seems that you are trying to throw single pivots under the bus, much like MTB marketers have done for the last decade.
• Lower leverage ratio = LESS small bump sensitivity. More force is required to overcome the spring force and initiate compression. Also, the shock oil is forced through the damper at higher velocities, which creates more heat buildup. This offsets any volumetric or frictional advantages.
• Yeti’s low, linear leverage curve should be considered outdated at this point. It was a nice experiment but Specialized, Transition, Ibis, Orbea, Norco, Santa Cruz, and others have all moved to higher leverage ratios with more progression in their frames for the 2020 season. There is a tipping point, but in order to get the most out of coil or air suspension for more riders, there must be more progression built into the linkage design.
• There is no magic pill or secret sauce in suspension design. There are only compromises and decisions to make as to which ones suit your end users’ needs. Smooth climbing vs. technical climbing, descending in rough vs. sprinting on the motorway, steep vs. flat, tall/heavy riders vs. featherweights. These are all mutually exclusive and must be considered during the design process. Each brand has their own “ride quality” philosophy and generally stick to it, even if it’s not optimized for all riders. It’s as simple as that.
Very interesting points you make. The one in particular is the lower leverage ratio = less small bump sensitivity. During my reading it appeared that lower LR = lower pressures = lower seal friction as I had indicated, which based on my background I can understand why they would indicate this. Furthermore, while you indicate that the oil is forced through the damper at higher speeds, which I agree with, there is also less damping forces overall in the system due to the stroke being longer for a given wheel movement thus offsetting heat build-up from the speed. Obviously the number of repetitive hits and size of them also plays a huge role in the heat buildup.
Love your reviews. I am more interested in short travel 29ers and I would Like to see you do an analysis of the Yeti 115. Please!!!!
Thanks for the input
Can you do the Propain Spindrift oder the Propain Tyee?
Hi! Great explanation! Can you do a video on a single pivot such as the Orange Alpine 6? I know most people think it is old technology but I like how you quantify the differences between each design and the single pivot is where a lot of brands and early mountain bikers started.
I do have a single pivot coming up in the queue
A single pivot design is not necessarily perfectly linear. While not as tunable as other designs, by changing the shock mount, it can be also slightly regressive or progressive. The one with the most progresivity that I know is Orange 324 (2.64 to 2.4).
Agreed....as you will see with a soon to be release video. A simple single pivot like the orange is flat linear, but if you place the shock at a weird angle you can get it to have a sloping linear, and if you put linkages in then you can end up with really weird leverage ratios.
@@TrailPOV Nice. I will definitely follow! Regarding the linkage driven single pivot designs, like Evil or Kona for example, I always wondered why not just going to a 4-bar design where additional to the leverage ratio, you can also tune the IC movement during travel, if anyway you are loosing the biggest advantage of a simple single pivot, which is simplicity and maintenance. Maybe you can address also this in the upcoming video. Cheers!
Very good video analysis.....
Thanks a lot
Do you have a video explaining all these terms? Or maybe a video on each term and why it matters and what it does for riding?
This video should give some explanation: ruclips.net/video/G-AbuCDKk9g/видео.html
Absolutely incredible graphics and reviews! Any giant/maestro reviews?
Thanks very much! So far I haven't covered the Maestro suspension, but it'll likely to be coming sooner rather than later. Stay tuned :)
Would love to see you review the Eminent Bicycles! Eminent haste or Onset…
I've been wanting to for a while but the rear brake mount poses some interesting force problems
Please do a Fezzari La Sal Peak and Delano Peak since the latter is somewhat of an update to the first
Thanks for the suggestions
Single-pivot bikes don't just inherently have a perfectly flat leverage ratio. They tend to be very close to flat on most designs, but it's simply because they're designed that way. By nature it's very very difficult to have a significantly progressive leverage curve on a single-pivot bike, but it's very easy to accidentally make them significantly regressive - as a result, when a single-pivot bike has a nearly flat leverage ratio it's probably because the manufacturer took significant care in avoiding a regressive curve, instead "settling" for a flat curve.
It's pretty tempting to think that since a single-pivot is a simple lever, the mechanical advantage of the system is always constant and therefore results in a perfectly flat line, perfectly constant leverage ratio all the time. However, when looking at it as a lever only the component of the force exerted by the ground that is perpendicular to the swingarm line actually goes into actuating the shock, and only the component of the force of the shock perpendicular to the main pivot/shock pivot line goes into resisting the motion of the swingarm.
Orange bikes (arguably the most ubiquitous single-pivot bikes) do have an almost flat leverage ratio: their shock is positioned very close to perpendicular with the main pivot/shock pivot line (and in fact I believe it crosses parallel at some point in its travel). However, if you look to some older examples such as the Cannondale Rush from 2010 or the Orbea Occam from around the same time period, they have the shock mounted at a rather extreme angle to the main pivot/shock pivot line, and that angle only gets even more extreme through the travel. That means the component of the shock's force that goes into resisting the motion of the swingarm reduces rather drastically as the bike moves through the travel, and the leverage ratio increases in a regressive design. This has been confirmed with linkage analysis software: the 2010 Cannondale Rush has a ~2.56 leverage ratio at full extension and a ~3.13 leverage ratio at full compression, for a regressivity of 22%.
It is an extremely good point you raise....I kinda figured someone would bring this up. It is true there have been several bikes with oddly place shocks with single pivot bikes, but I was trying to make a generalization for how most modern single pivot bikes respond. But a very valid point you make 👍
@@TrailPOV ah, fair enough. I haven't seen a true single-pivot in years without a flat leverage curve, so I think at this point that's a pretty valid generalization to make.
Excellent analysis on the Yeti! I actually had no idea the anti-squat dropped off so much towards the end of the travel, and now I want one.
You along with many others want one :)
Canfield suspension gets pretty hyped up, I wonder how it actually stacks up to this.
It's in the queue :)
I am curious about CBF too. And Banshee KS-link!
@@ISMarco The CBF is in the poll, but so far the Enduro is in the lead for next vid
I've got one, the tune of the shock is key, amazing with air, coil unreal. Sick bike, only goes well at speed but not nervous. Fuck the price but recommended
Nice, definitely is a sick bike!
Great suspension videos. Can you explain the Niner CVA suspension please?
Thanks for the input. I have taken a look at the Niner over on my patreon page if you're interested #shamelessplug
Love your videos. So much effort in these. Could you do one on Niner Rip 9 RDO? CVA suspension? Super curious how this suspension system compares to the competition. Thank you!
Thanks for the suggestion. You been watching Syd and Mackys channel haven't you :)
@@TrailPOV Haha, I have. But I also happen to own one and I absolutely love it. So really curious how it fairs against the competition. Thanks!
love this kind video
Glad you like it!
Waiting for the SB165 comparison. I tested both bikes assuming that I would like the SB165 more due to the smaller tires, but I felt the coil shock did something to the bike that ruined the feel. Just curious to see if science backs up my real life experience.
Hmm, interesting to hear. I'm hoping to get to the SB165 in the future.
Nice job as always on explaining everything. Have you ever looked at Trek’s suspension on the Fuel Ex?
I have taken a look at the Slash over on my Patreon page #shamelessplug
Awesome video! Ripmo next!
That is the plan!
Would be cool to see some reviews of this manner on how Cascade's links change the suspension kinematics - for better or worse?
Never heard of them. Thanks for the heads up and suggestion!
Great videos. I have a suggestion though. You should change the scale on the leverage ratio charts to whole numbers like 0 to 4; not just a zoomed in section that makes it look like the LR is changing more than it is. It is somewhat misleading to show graphs this way.
That is a fair point. I know with my last video the Kona looked very wavy until I plotted it on a 0-4 axis and then it became apparent it was actually flat.
Can you suggest sone good Enduro or trail bike can with geometry and suspension system be able to climb the trails good? Not necessarily new models. Thanks
Almost all of the bikes featured on my channel can climb very well
Do a Fezzari suspension review please. Specifically the Abajo/Cascade.
Thanks for the input
Wow ... really good video
Thanks!
Could you please do a video on the Jamis 3VO suspension? Just subscribed for these videos, great info!
Thanks for the many comments. I'll put it on my requests list :)
Will you examine the Alchemy Arktos 130 and compare the differences between the 130, 150, 170
Never heard of the bike. Thanks for the suggestion.
Any chance of doing a review on the Commencal Clash suspension?
I can certainly add it to the poll and see how many other's are interested
Trail POV thank you
Greatt again,. go on. Thx. Canyon Torque maybe?
Thanks! The Canyon might be incorporated into another informative video style I'm thinking about putting together.
Considering how closely Yeti and Evil compete with each other, I'd love to see a comparison between Evil's DELTA and Yeti's Switch Infinity.
I do have a video on the Evil Delta already up :)
This is awesome content. Would you be interested in analyzing the PRO10 suspension design of the new Propain Tyee?
Thanks for the feedback
Love it
Thanks!
Love these analysis videos! Can you do the Canyon Strive with its Shape Shifter tech?
I'm very intrigued but it too. It's in the poll and very likely to be covered in a future vid
What do you think of the stress dispersion of the rear triangle to the pivot bearings? It seems as bearings get more dirty and slower, they wouldn't be able to disperse energy to the shock fast enough and take too much shear stress? Particularly that lower bearing linked to the infinity switch.
As long as you keep your bike clean and lubed then shouldn't be a problem.
Great videos! Capra 29 please. :D
Wow, very interesting.
how about a comparative on SB 165 T2 float x2 vs SB 165 T2 , thank you
Unfortunately I don't compare shock absorbers because there are soooooo many setup options and most shock providers don't provide much technical info on their shock response
Ok , understood . Thanks .
in this video Sb 150 you say you wouldn't recommend a spring shock for this bike .
how about the Sb165 with come with a spring shock .
if possible I would like your opinion
thank you
The SB165 has a slightly more progressive leverage ratio with a very progressive end stroke, so you could probably put on a spring shock without issue. It'll have good small bump compliance due to the shock and excellent bottom out support from the leverage ratio.
Could you make pls a video to the ShapeShifter of the Canyon Strive bikes? amazing systen!
Thanks for the suggestion
Great explanation of how the switch infinity works... Can you do a review on the 2020 specialized enduro please as I'm struggling to decide on which one to get SB150 or Enduro....?????🤔 Thanks.
You're not the first to ask for this. It is in the queue :)
Hope the queue isn't tooooo long 🙈 as I'm looking to buy one of them in the next few weeks👍🏻
@@chopper2318 Queue is longer than that. However if you go onto my Patreon page there is a way to jump the queue if you choose to become a patron in my top tier....might be worth it to you to get the info.
Any chance we can see Canyon at some point? I absolutely love this stuff
Thanks very much. With enough requests from others absolutely. So far the dw-link seems to be the front runner
@@TrailPOV would love to see your analysis of the Canyon Strive, especially how the Shapeshifter tech affects geometry! :)
@@timothywee5360 I'm intrigued by it as well, but you're going to have to wait in suspense for a bit longer 😋
Hi - I’d love to see your update on the new SI for the updated 160 .. does the extra 10mm provide better Marketting or does it improve the SI performance?
I've done the SB165 over on Patreon if you're interested #shamelessplug
Thanks - I did just check it out, but was after the 160 being their latest offering @@TrailPOV
Have you got an analysis for the Forbidden Druid?
It's coming soon
Great info as always, just so I understand this correctly, is that considered the lower link where the swingarm travels lightly up or down keeping it on a straight axle path, if so what is the benefit of all the extra engineering and material as opposed to a simple link? Am I way off on what this is doing and understanding the benefits? Thanks
If it was a simple pivot at the bottom it would be linkage driven single pivot. By including that moving link, even if small movement, it creates a instantaneous centre line that extends in either directly thereby allowing the IC of the suspension to move during the travel resulting in different anti-rise and anti-squat characteristics than a normal single pivot. If you watch my latest video you'll see the difference :)
@@TrailPOV I see, I that is much different than I thought and makes much more sense. thank you
Please can you do the FSR linkage on the Specialized Enduro?
It's in the queue :)
@@TrailPOV great thanks man. I find my linkage really linear so I'd love to find out how it works :)
What is the relationship between the size of the chainring and the antisquat and anti rise? I know increasing the chainring size decreases antisquat, but what does it do to anti rise if anything? Thanks. I love your kinematic analysis videos.
Thanks. Anti rise is not dependant on chainring size as it's a force due to brakes not chain.
@@TrailPOV ahhhhhh, thanks, in hindsight that should have been obvious lol. Keep up the great work!
still waiting the sb150 vs the sb165 video :(
I'd love to see your thoughts about YT Capra! Cheers!
What is the best way to estimate the center of gravity? 90cm straight above the crank?
For all my videos I have chosen 780mm above the crank
I have a SB150 and fitted it with a DHX2 running a Canecreek Progressive coil. And I friggin love it, great small bump and good bottom out resistance, what more could you ask for :)
Sweeet!
I have an sb130 with a push elevensix. You had advised against a coil. For those who already have a coil, are there any compression settings which can improve the kinematics of this bike with a coil?
Improve the kinematics in what way?
Did you consider the sliding joint at the bottom? It looked fixed in the animations.
Definitely did. The movement of this joint is very small in animation and real-life
Very interesting!
So the whole slider is designed bigger as needed... haha. Looks cool anyway ;)
Did you think about a calculation of the new Specialized Enduro kinematics? It felt different to anything I tried yet, in a sensitive and active way.
@@patrick4406 So far the Enduro is leading in the poll for next video 👍
It would be interesting to hear your views on the pros and cons of high vs low leverage ratios. It seems to me that many of the bikes today run fairly high leverage ratios across the board from short to long travel bikes. If the leverage is the same from sag on, I wonder how differences in leverage ratios prior to sag impact ride feel. Does it matter if you need to get to say 30% sag regardless?
The high leverage ratios to begin with means the shock doesn't move much for a lot of wheel travel so when you're chattering over small bumps and unweighting the bike, the suspension is not heavily hindered by damping forces. The high leverage ratios overall means you need a lot more pressure in the shock for the same weight rider to support them so if you are a heavy rider it's better to get a bike with lower ratios. While you typically pedal at sag, when going downhill you should use both below and above sag regularly.
@@TrailPOV Thanks for the reply! In this video, you note that a lower leverage ratio offers better small bump compliance because you can run lower air shock pressure. Many of today's bikes seem to run higher leverage ratios in the name of small bump compliance. Which leverage ratio would you say offers better small bump compliance? High leverage, but more pressure or low leverage, but less pressure?
@@richchin5163 For an air shock the first part of the travel is very firm due to the sealing so a high leverage in this region is good to overcome this friction more easily and provide a supply first part of the stroke. Once you're in the mid stroke the high leverage ratio isn't as critical as the dynamic friction takes over and you just need enough pressure for you to be able to use your travel. Having too low a pressure for your weight isn't beneficial. And having a really high leverage ratio in the mid stroke isn't beneficial either.
@@TrailPOV Thank you for the continued education!
Can you do the Jamis Hardline?
If you're interested, I have a summary of it over on patreon.com/trailpov #shamelessplug
Can you also look at a high pivot like the Druid by forbiddenbikecompany
It is in the poll but so far the Enduro seems to be winning for next video
@@TrailPOV that's good too.
Please review Delta link suspension
Thanks for the feedback. Interestingly I was busy talking with a bike shop yesterday specifically about the Evil bikes and their suspension.
Nice Video as always!
would you mind doing evil wreckoning? if you already did, i havent been able to find it.
cheers!
Nope haven't done it already. Thanks for the suggestion.
very cool
Thanks. Only took me 26hrs to put the video together!
Do you have any thoughts on the friction of the seals on the Switch Infinity Link altering suspension performance? I ask because my wife's SB100 seems especially sticky, and she's a lighter weight rider so she doesn't have a lot of air pressure in the shock pushing back.
In general running a shock at low pressures with lightweight riders means the stiction on the suspension is more pronounced compared with overal force required to activate the suspension. Same reason why motorbikes feel sooooo plush....their sprung weight is easily able to overcome the static friction. The friction doesn't increase significantly as the pressure inside the suspension goes up (there's a high minimum value)
switch infinity as in a classy way to call a single pivot design
While it may appear to be a full sus, there are some distinct suspension response characteristics
Does anti-squat add any backward force to the pedals, as if you're using some of the force on the pedal to hold yourself up off the ground and not squat?
Anti-squat is correlated to chain growth = pedal kickback so short answer is yes
surely do the revel
This one is on the poll and possibly will be the one after next.
Could you do the Forbidden bikes Druid??
Thanks for the input. I'll see how many other people have great interest in it.
Canyon Spectral, single pivot please?!
Have had a few requests for single pivots so I suspect I'll put one of those together when I get a chance.
Review Diamondback Level Link!
I want to you do the new specialized enduro
It's coming soon
I can't find the comparative between sb150 and SB165, did you make it ?
(nice work by the way)
Stay tuned over to my Patreon page :) #shamelessplug
what is the lowest seat height?
Slammed to the bottom!
It has 2 rear shocks, what do you expect? It will be linear of course
The short vertical link I would not classify as a shock...it has no air volume or damper and just provides a sliding pivot
What kind of suspension does the orbea rallon have?
Linkage driven single pivot