INSANE 2x Gear Range!
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- Опубликовано: 27 авг 2024
- More hacking with the S-Ride rear derailleur, this time trying it on a double. How low can it go? SHOP: pathlesspedale...
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Pro tip, Russ - if you’re chewing up Phillips screws it’s often not just that the screws are made of cheese, it’s that they are actually JIS (Japan Industry Standard) screws. They look like Phillips but they’re not. Get yourself a set of ‘Vessel’ brand JIS screwdrivers and voila, no more chewed screws! What’s more, the JIS drivers work perfectly well on standard Phillips fasteners. Once you’ve experienced the miracle you’ll wonder why you didn’t do it earlier! (PS, feel free to slap me if you’re already all over JIS) hope Laura is doing well!
Pretty sure this is not a JIS, because s-ride is from China. Newer Shimano products don't use JIS screws either. They all use screws which can be fastened with ISO 8764 screwdrivers. If it is a JIS screw, the screw should have a mark (point or a little x, source Wikipedia: List of screw drivers) on its head. However, worn tools on the other site are one of the most common causes of stripped screws.
@@manueldeubler1127 good call, China origin is unlikely to be JIS. My judgement might be clouded by my First Tier Hobby, motorcycles, where JIS tends to rule the waves. Good pick up, my mistake.
@@kymcopyriot9776 Looking at the frame at 6:29 it does indeed look like a JIS-head screw.
Good call
I surely needed this video 2 years ago and will likely need it again in the near future. 2 years ago everyone told me what you just demonstrated was not possible. Desperately searched for an alternative to allow my 190 lb-63 year old body to pull long hills (strangely, I love the grind). Ultimately, I rigged my Salsa TI Fargo with a SRAM GX Eagle MTB drive train (30T front & 10-50T rear) for bikepacking adventures. You just proved a 46-30T front and 10-42T rear with brifters will provide me the low-end range needed to haul my carcass over major ranges in the future. I love you man!
I had an idea today. A reverse mullet. Single speed in the back and a 2 or 3x in the front!
I've seen a few of those, although not in at least a decade. They were all set up on mountain bikes with a singlespeed hub in the back attached to a chain tensioner and then a double ring in the front without a derailleur (the rider would manually move the chain), although I'm sure it would work just as well with a FD.
Look up dingle speed bikes.
Thats called internal gear 3 speed in different world
That’s the standard set up for bicycles in Africa, although they are used as mobile shops! There not really for leisure riding, they are associated with impoverished people as they are cheap but for cruising they looked ok
@@Alex_564 Thank you, thats the name I couldn't remember!
"Cave of bad ideas" that needs to be a sticker or at least a sign in your Cave of Bad Ideas area.
Triples are still the king for crazy range IMO. Something like a 44-32-22 with a 11-34 cassette and you have all the range in the world without resorting to exotic parts and wild experiments.
And better cadence. Remember when they told us we needed more gears and tighter ratios... Now they are like, nah, just kidding, you want simplicity. I kind of agree with both. Triples are a pita, but 1x is to widely spaced. Solution, wide range compact double.
I am running this exact setup on my old Cannondale M400 625% range is wild. Literally cost $60, $40 for the square taper crankset and $20 for the 7 speed cassette every thing else on the bike is original from 1996
@@MountainVisions I comment everywhere telling everyone to get a 42/26t double crankset and a 9 speed cassette: 11-40t. Big ring is 1x for the road. LIttle ring is 1x for off road.
I'm using 11-42 with triple 9 speed. Shimano shifters, Shimano derailleurs, Sun Race cassette. Needed a Wolf Tooth derailleur extender. Works great. This single up front with a dinner plate in the rear is just trendy nonsense. If you can't adjust a front derailleur, maybe you should be in some other sport.... Learn how to use your gears so you don't cross chain, and shifing becomes a joy. Having the ability to shift up front is like quickly shifing up or down 2-3 gears in the cassette. Quick and simple snappy shifts. Hopefully these parts will be available for a long time.....
i know it's pretty randomly asking but does anyone know of a good site to stream newly released tv shows online ?
I have a nickname for you: king of low gear! Btw, i run 9 speed shimano sora on my gravelbike with 46/30 crank and 11-40 sunrace cassette with a alivio mtb rear derailleur (with no link to extend). Runs flawless for 2 years now👌
is it a trek520?
@@guillemxanxo2683 No, it's a jamis renegade explore, assembled with standard setup 50/34 in front and 11-32 in the back. So i changed crankset, cassette and rear derailleur.
@Patrik Pfeuti this is precisely my kit, built on a Soma Double Cross Disc. 2 x 10, works perfectly.
is it an fsa 46/30 crankset? i read it's only compatible to 10 and 11 speeds. can it be used with 9 speed?
@@rapmeister5242 yes it's a fsa omega crankset, and like i wrote in my previous comment...flawless!
This was brilliant. Thank you Russ for scratching those ‘what if’ itches we all have.
Been running 44/34 in front with 9-46 in the back for over a year with no problems. Love it. Sram Force 11 speed shifters with a GX 11 sp + goatlink in back. Can go fast and pull a loaded for camping trail a bike with a kid in it up hills.
I feel like this is the route I may potentially try to go but with Shimano Di2 eventually, except with a 31-48 crankset, if possible. How are you liking it to this day (a year plus later)?
HUGE thank you for this video and many of the comments. This really helped me get through issues with rebuilding my 2011 Surly Troll.
Due to my lack of knowledge and parts supply issues with 12 speed cassettes, I ended up buying a SunRace 11-50t cassette to mate up with a M8120-SGS and a 2x XT crank. As I was putting it all together, I thought, "no fkkn way this is gonna work." After watching this and doing a bit more research on bike forums, I figured it out! Now this old Troll climbs like a Himalayan mountain goat! Thanks all!
As a 2x advocate for anything other mtb, I love the front chainring sarcasm. Also, I’ve been curious of using a 1x Rear derailleur with a front derailleur for crazy range. Bike packing Colorado makes you want that range.
Same here. I totally get 1x for MTB, not sold on it for gravel, bike packing or road. I was building a mega 2x drive train which I was testing on a project bike before I track down a frame for final build. Unfortunately, I had an issue with the Sunrace M9 derailleur (unrelated to the setup) so didn't get to test the 1x with 2x setup. Currently microshift long cage with moderate 11-28 on a 3x front. Good enough for unloaded class 1/2 gravel and the road stretches. Getting all the gear range out of 2x would be optimal vs 3x
But future plan is something like 2x9 with 11-36 or 40 and 50/32 up front.
I put on a shimano xt rear derailleur with 11-42 cassette and a 46 36 26 triple up front and it works. You just CANNOT cross chain big ring/big ring or else 😅 but the range is ridiculous but useful !
Gevenalle long pull shifter and older style MTB rear mech. Built specifically for that type of malarkey!
I don’t have that gcn money, I just spit my drink out
Love the Cave of Bad Ideas series. Can't believe you are cranking out so much content here lately with all of your other projects. Well done. Thanks for the hours of entertainment and information.
This is awesome. I feel less insane for running 2x with an 11-46 cassette
I may be considered somewhat crazy for running a 26/36 w/ 11-46 on my ‘16 trance adv too but it works for my 63yr old legs so...
11-42 is standard for MTB 2x, so why would it not work for road? I was running a 26-36 front with that cassette, so the step is 10 cogs, admittedly smaller than on the presented front double 32-46, was it?
For those that did 2x with 11-42 or 11-46, using GRX long cage derailleur or other?
I’ve thought about this too. Russ rules for doing this!
I run on alt bars Shimano xt 11-40 cassette and long cage rear derailleur and shimano GRX 46/30 crank with a downtube friction shifter (all the derailleur trim I need) Runs amazing. I have the clean cockpit of a 1x with the superior range/increments of a 2x. Big ring on flats, small ring on hills. I call it : 1.5X (1 and a half by!!)
"See you after the clap" sounds like a bad pickup line...
1. The info on the S-Ride derailleur was much appreciated as this old man was looking to expand his gear range with my current 105 setup.
2. I love your taking on and presenting out of the mainstream equipment and setups.
3. The moniker “Cave of Bad Ideas” is priceless!
Playing with a bunch of different parts that shouldn’t necessarily go together is what
makes cycling fun for me. So I love to see this sort of experimentation and might even give it a go in the future.
Thanks for the content 👍🚲
Thanks Russ. I love the Cave of bad ideas! Not a combination I am interested in, but I love seeing what is possible.
Double mullet = extra short buzz cut in front + extra long Rapunzel
hair in back. Delicious
Chain wrap capacity of the derailleur is measured by (low gear tooth count minus high gear tooth count of cassette) + (high gear tooth count minus low gear tooth count of crankset) Looks like 47t is listed as capacity on their site. Anyone wanna do the math here?
Great channel, so inviting and fun!
Shimano gear capacities are pretty conservative and the same might be true with the S-Ride derailleur. The only way to really find out is to experiment, which is another reason why Russ's videos are so instructive and entertaining.
47-16=31, 11+31=42, so with a 46/30 on the front you're within their stated capacity with an 11-42 on the rear. (I saw 49 teeth on Soma's site which would allow 11-44 with 46/30)
I love those experiments, thanks Russ!
such a cool idea! imagine even more chainrings on the crank for like.. more gears
🤨
It may make some laugh but a friend just put a triple on his former 1x10 just cause he could. Where he uses it he could run single speed. Just playin....its winter here.
Love what you did there, MacGyver! LOL - seriously, really enjoy trying out different components to see what will work the best.
Great video! I love your attitude, pushing the limits!!
By the way, I use 46/30 11-42T with a GRX RD-RX812 combined with a RD-M8000 long cage, and it works on all gears!(kind of :))
This sounds pretty close to my dream bike drivetrain for touring/gravel.
B screw problem fix, just relieve some pressure off of the contact point by swinging out the derailleur backwards, then proceed with screwing in the B screw. But then again having a correct tool is also a good thing!
Back in the Eighties there was a mod called the Mountain Tamer Quad. 20t or less rear sprocket on the inside of a triple chain set.
Just sayin’.
20x32 with 26" wheels was good for loaded and off-road riding, even at high altitude in the Himalayas. 15x34 on the other hand was worthless. ;-)
Love it! I've been rocking a 48/36/26 with an 11-42 on my touring bike. I could see something like this getting me back into a double.
try it, i went back to a triple so i can run an 11-32 for smaller steps cause sometimes legs get picky but really liked the double as it allows for better chain-line when crossing gears.
Master Yoda Calvin from Park Tool always says, when adjusting B " Don't be a hack...pull the derailleur back" 😎
Nice presentation Russ. Love your sense of devious alchemy here. I think Sheldon would for sure approve. And here's me still experimenting with a lotta old 9sp era kit cast offs and the 'Australia Tax' shipping of any new and/or obscure parts.
I love the Soma frames, they make good stuff.
Give Laura my get well wishes. I got diagnosed in 2017. Soak up all the love and goodness around and stay positive. Love the ideas on ur channel. I’m 72, retired and biking is a great hobby.
“... as one does in the cave of bad ideas”
Haha I lost it as as you had to step away before trying the big, big. You’re the best Russ. I loved this episode of PLP.
Lawd, I was on the edge of my seat as you approached that big big combination. lol TENSE
Cool triplets next 🤗
When the triples come back I’ll be back in with the cool kids again...👍🏻
Flat bar gravel with triples aren't out until 2022. Unless you buy a time machine and go back and get one from 1992. Problem is, time machines are expensive. Almost as expensive as flat bar gravel with triples in 2022 will be.
@@joelogjam9163 😂
I actually have a 92 Trek 930 ridged Mtn bike with big fat slicks on it I’ve been using as my do everything I won’t take my roadies on for years
I always called it my urban all-terrain assault bike but now I guess that’s considered a “gravel grinder”
46/36/24 triple in front and a 7 speed 13-30 in the back
Most comfortable enjoyable bike I own
I love my 1998 Rockhopper with flat bars and a triple.
@@joelogjam9163 truth
You’re lowest gear is like a road set up, just backwards.
Thank you for stretching possibilities and expectation of chains and group sets, the double mullet is classic
We need deraileurs that scrape the road
Love your channel. Even I ride mountain bikes and commuters. I learn much from you and feel honour to be taken along for your journeys...thank you Brother.
Just in case someone watching here doesn't know, you need to be able to get into the big-big combination not because you want to use it (you never should as Russ says) but if you do slam it into the big cog in a fit of pique you won't destroy your derailleur and/or gear hanger as a result.
@@mattmatthews5414 Hi, Matt. I spoke from experience and for once wasn't either on the ganj or the booze, only thinking about girls. Just sayin'...
This set up makes sense if you live in an area with a lot of hills or are loading your bike up for adventure rides
Thanks for the content Russ
A) There has to be a point where gearing is so low, gravity wins. B) Cheers for the backpedal C) We need to get you a space heater man =)
Yep to A, I put a MB 36/22 with 11-32 (19 inch low) on my gravel bike when I got it last year and found I only went down to the 28 (21 inch) on really step hills. Unless you can spin really fast road speed will be too low. Search for Sheldon Brown for gear info.
I would totally use this. I'm used to not putting my bike into big/big anyway.
Yeah I've tried riding with a too short of chain for big-big before. It didn't end well. I don't need to work great in big-big, but it shouldn't explode either. I'd rather a saggy small-small.
@@jeffreythompson6282 agreed, the main use for a setup like this is to ensure that small/big and big/small work.
I think some people do actually set up their rides where big-big is catastrophic. The issue of course is REMEMBERING that doing so will grenade your drivetrain.
Hey Russ do U think 2x 48/36 10-42 11sp cassette with sram 12sd gx derailluer mullet style
Always fun stuff here, nice work! I was expecting an explosion of springs and links there, NGL!
I’m running a 46-30 up front and a 10-45 in rear. Live in the mountains so love those low gears
I did a similar thing with Grx components. 600 crank (46-30), 800 shifters and front derailleur. For the rear derailleur I fitted the cage from an RD-8000 XT derailleur to an Rx-812 Grx derailleur (fits on without any mods). The 812 is actually a 1x derailleur but it works fine. Now I have an 11-46 cassette with 46-30 on the front, shifts great.
I live in the Alps so a lot of steep and very long climbs plus I’m getting older!. I imagine for someone not living in the mountains that it’s just OTT.
1:46 stay warm my friend. Love your content. Stay up!
Now I want to see this whole setup combined with a Pinion gearbox up front.
Just get Rohloff and Schlumpf :)
I thought about doing this with an 11-50 cassette and 53/39 chainrings and was told it would never work. Now I'm vindicated, 1:0.78 to 1:4.82 range here I come!
Thanks Russ! This is super valuable for trying to figure out how to set up my next build.
Tremendous job, I usually don't ride off-road,but when riding on rural roads surface can change from good to bad to gravel. This is just what I need for long distance touring!! High speed plus very low gears for steep hills. Cave of bad ideas a MUST!!
That is just stunning!!! I am blown away. Then you pulled out the monster monster Cassette....
Another great video! I love your experiments, thanks for sharing.
So much fun to watch the Cave of Bad Ideas. Please keep goin with the mad bike scientist fun times.
Yessss! Fun and funny and it works! Dialing in a loaded, double front chainring-mullet set up. Nice work!
Awesome I always wondered if that set up would work, thanks
Your combination of 46-30 chain ring with 11-50 cone works out (in gear inches) to a range of approximately 16-112. I have a Brompton six-speed with a 54T chain ring, and a Schlumpf Mountain Drive. My range is approximately 14-108. Just what I need for climbing hills in the Pacific NW area.
Good stuff! I'm currently running a 46/36 cyclocross crankset with an 11-46 cassette on my CrossCheck and I love it!!
What derailleur are you using?
@@cccorlew Shimano Deore with a Roadlink
Yes! Gotta go anywhere frakenbike in my cave. 10 spd clutch XT rear w/32 middle N/W ring for 95% of rides, but small/big ring "options" on a triple crank. No front der.! Just "manual" front changes when 5% of load/terrain warrants it.
The art of working with what you got!
Thanks for the video.
I enjoy the single speed single brake bicycle and the view.
Thanks admin.
Thanks all
That's some serious bend in the rear derailleur cable housing.
That was soooo much fun - and bizarrely useful - cheers !
More bad ideas! LOL double mullet madness, Thanks for this info. My daughter but home a letter from school stating ; " haircuts such as mullets are banned as they are considered extreme haircuts"! "Students will be sent home to have the hair rectified"! Private school mullet madness.
I’m currently running a SRAM double mullet on a Wolverine with the Defiant crank. Rival brifters and long cage r Der with road link. 11-42 Shimano cassette. 42/30 chainrings in front. I swapped a 10 sp dimension 42t ring for the 46, with no probs.
Best experiment ever!!!
thx for the video. encourages me to try it too somewhere in the future 😅
Love the mullet content. Thanks for sharing!
I trashed my S Ride derailleur today. In searching online to see if Shimano has made the derailer I need I discovered.... nope. So I'll order another S Ride. I'm running 11-40 and 46-30 with Ultegra shifters. The shifting was OK. Not smooth, but it worked. And there doesn't seem to be an 11 speed double alternative. The Shimano GRX RX400, would work, but its cable pull is wrong for 11 speed. So, S Ride again I guess. Thanks again for this video Russ.
Thanks for doing this, Russ! Haters gonna hate. I love the 'sub-compact' wide-step double on my Wolverine: 40/24 up front with an 11-40t 10-speed cassette in the rear. The other benefit that I think people don't always realize of a setup like this is you get much tighter spacing between gears than you do with a 1X. For drop bar bikes, 2X is still the bee's knees in my book.
Im planning on running 40-24t CS with 11-34t rear cassette. What derailer are you running?
Great video - thanks! Of course the standard 105 R7000 GS rear derailleur will work with an 11-40 at the back and a 50/34 at the front. Just. No Goatlink required.
This was a fun video! Thank you
If you wanna go full "Cave of Bad Ideas" on a wide-range 2x, try pairing that 11-50 with a 42x39 road double crankset and road front derailleur...
24 distinct gears, with even 7-8% spacing across a 20 to 110 inch range, a no-brainer shift pattern, and the only downside (every other shift is a double) is pretty much eliminated by brifters.
It's called half-step gearing, because the difference between the chainrings is 1/2 the average difference between cogs.
It turns out that a lot of the 11 and 12-speed ultra-wide-range cassettes have very even 13-16% cog-to-cog spacing, and a 42/39 is 7%, so it just works, and with totally common parts. (The only cranksets that can't take a 39t chainring are old 144mm bcd, like classic Campagnolos... and, if you wanted to use one of those, you could go 45/42 and it would work the same way.)
Thanks for the video
Great content
105 only has short and medium cage versions. Yours should be the medium cage (which supports up to 40t unofficially)
Long versions only for MTB or GRX with Shimano
I love your humor Russ
"Do something weird internetz dude" xD
I don't know why everyone is going on about triples, the limitation here is the ability of the mech to deal with total chain wrap, adding more cogs doesn't make it easier for the RD to accommodate the highest and lowest ratios.
I would love to run a hack like this if there were some kind of limiter to stop me gearing too close to big-big, then you could run some wild ratios.
For anyone doing a 2x or 3x with a rear derailleur that is past it's max capacity it is best to set it up larger ring (opposite of the video). The reason is that you will still have access to to lowest gear but have less rink of over stressing the derailleur by inadvertently shifting beyond it's capacity. I have done this on a commuter/ touring bike [46/38/24 x 11/30] 945 tooth difference) on a Shimano 105 GS (39 tooth capacity). The derailleur held tension on the 24 x 21/30 (last 4 gears on a 9 speed). only used the 24 as a bail out gear on tough hills never had a problem with chain slack and by the time I was gong down hills or on the flats I'd shift up to the 38T front anyway. Did the same for a [38/22x 11/36]. I ride that bike like a 1x + bail out. The 22t in in tension from the 15-39 (7 gears on 10 speed) on my bike.
I’ve wondered if such a combination would ever work. Thank you for experimenting to show that it can with some limitations. Though I would not have a problem with a set up where the big ring would not work with the biggest cog in the back. It’s hard on a chain and derailleur to do that anyway. I try to avoid it with my less radical set up now.
By not doing so you will create less wear and tear on your drive-train, end game longer life for these parts also means keeping some of your co$n in your pockets.
put a 46t cassette on my old steel road bike using a grx long cage derailleur and wolfs tooth. installed a tiagra compact 34,50 on the front. great for all the long steep logging road climbs in my area. gave that bike a second life
Reminds me of my old dingle speed set up.
Double single speed. One speed for thrashing about town, another for carrying a loaded trailer/ going up and down hills.
Had to take the wheel off to manually change gear, which was a bit of a ball-ache! 😂
Thank you so much for this video. Planning something very similar with 11-46 and 48/31, except using larger jockey wheels and possibly a goat link to allow a longer chain to get all gears. Your video has just convinced me it's workable! I'm pretty sure with the additio. Of jockey wheels, a goat link and a longer chain you could potentially get all gears with 11-50. So many naysayers postulated my bike will explode and the fires of hell will open up to claim the abomination that will result from such a indulgently geared drive train.
46x52 is where the irresistible force impacts the immovable wall.
Great vídeo. I like the bad (good) ideas 😊
I have 50/36 105 front with xt 1x 46-11 rear on my cannondale bad boy . Shift flawlessly from both chain rings thru out entire cassette. Big to big small to small no problems. I get the low range of mtb and speed of a road bike
Just don't shy using triple
I used 48/38/28 and 9 speed 11-40, not worried in every condition lol
I am building a mixte for my gal using the same 48/38/28 with 9 speed but plan on taking off the 48 for a pant guard when I find one. Anyone know where I can source a 38t pant/bash guard for this?
@@glidealong1171 depend crank arm bcd you used, but you can going to workshop that running cnc machines, they can make custom bash guard for your crank if you can't find one
Interesting video on limits of systems. I enjoyed this one
Can't wait to hear your take on the DTSWISS GR1600.
Russ, nifty work! You can pull the derailleur back by hand and then turn the B screw instead of making the screw do the work. For the limit screws, you can shift to the adjacent gear and go a quarter turn at a time and then shift back to test it. It might save your screws heads.
I just push the derailleur in the detection of the limit screws to assist them. Definitely lift for the B tension. Stripping those screws sucks.
Cool experiment.
I Love It Dr. Frankensteeen !
Quick tip on the b-screw...un-tension the derailleur from the hanger stop for the b-screw when you tighten it in and you shouldn’t have an issue with stripping the head, unless the threads for it are f’d.
Also tip: to get even more massive range from b-tension you can screw in the b-screw from the other side of its hole, meaning from the underside of the derailleur...may require a slight bend in the screw itself to align properly with the derailleur’s b-stop but you will be able to run an even larger rear if desired.
My 2¢
All the screws are soft. Even the high and low set screws. They used cheap screws.
2x Mullet is the way to go if the gravel ride is 6K + climbing, thanks this review is great.
If you put an oversized lower pulley wheel you can increase chain wrap capacity by a link or two. That way you can put a longer chain and possibly get into big+big. Judging by the amount you need you're going to have to go to a quite big pulley, like 18-20t. (which could require you to grind off a tab or two on the cage)
Also I've seen cassettes that are 9-52t which would offer you the greatest range. The 11-50t you have can fit standard freehubs but if you want the same range you can get it with a much more derailleur friendly size of 9-42, which would require an xd freehub but still. It's more 2x friendly, unlike this 11-50t cassette.
Holy shit this is so nerdy I just wanted to ride my bike
Ah, did it make you MORE keen to get out though???
@@peterharrington8709 Haha, Russ always does
The future has arrived!!!
I like 2 gears. Sitting and standing.
I used that setup for a few years.
I'm running a 48/32 Praxis crank with 11-40 11 speed cassette on 105 RD & shifters, it works great! I use a stock chain with 4 links removed, It'll run big/big & little/little without issue. B limit RD screw is maxed out.
"48/30 " Do you mean 48/32 ? I have a 48/32 Praxis and don't think they make a 48/30 .
@@cccorlew Yes, thanks for the callout, just corrected it.
I am trying understand what's the difference here. I'm glad you are experimenting, and trying different things to see if it works!
On my Ridley X-Ride gravel/commuter/bikepacking bike, it came with 105 (5700 series) with 50/34 and 11-32 stock 11speed.
I swapped the 105 RD (5700 series?) to a 105 GS series RD (R7000 series). The difference being the small extra link (visually). Then I installed 11-40 XT 11sp Cassette. That was it....(besides a longer chain, I believe 116 link, whatever is the regular Shimano mountain chain 11sp)
So the difference is that the GS series RDs work with mountain cassettes, and I believe (but don't quote me on this) that GRX is exactly the same. I believe you can run a 11-42 cassette, but I only had a 11-40T on hand. Everything was plug and play, built in barrel adjuster and everything. I also believe the RD was cheaper than this one...
So I have 50/34 with 11-40T cassette, everything plug and play will yield both higher gears on the top end, and lower gears on the bottom end.
So if you have a GRX 46/30, it should work no problems, and give you slightly lower top end gear inches, but also lower bottom end gear inches as well.
For the actual numbers, you can go to Sheldon Brown gear calculator to confirm this (gear-inches):
50-11: 124.2"
34-40: 23.2"
46-11: 114.2"
30-32: 25.6"
If you ran a GRX 46/30 with a 11-40 cassette (gear-inches):
46-11: 114.2"
30-40: 20.5"
The biggest difference is in 1x drivetrains. This derailleur will do an 11-50 natively. IME 46t is the max a GRX derailleur will do without modification.
The fact that it doesn't have a barrel adjust has me leaning towards the idea that this derailleur was actually meant for MTB, and obviously there's a market for it since Sunrace makes a 11-50 11sp cassette. Of course, the retrofit is adding the barrel adjuster.
But I understand what you're saying. I believe you're correct about the GRX. .Although there are plenty of videos showing that the XT M8000 SGS long cage 11sp rear derailleurs having no problems clearing the Sunrace 11-50.
They're also priced about the same....and in the matte color you want.
@@josh33172 i think the lack of a barrel adjuster was a cost saving measure. The IMPORTANT thing is cable pull. It has road cable pull.
THANK YOU INTERNET PERSON! I'm going to order this today. My plan is just to go to 40 in back, so I should be OK. And thanks for the B-screw info. That may save me a lot of swearing. I shall file a report to the Cave of Bad Ideas when finished.
I've been through 3x initially and switches to 1x and It didn't last long to me so I bought another bike. This time I keep it 3x which Is my fav bike to ride in almost all of my ride. 26-38-48 crank and a 9-44t cassette. Man, I can ride along with the roadies too. They're like, "wtf man you strong!". I said no, I have 9t rear and 48t front gear combination for speeding up. Which has higher ratio than a 11t and 54t of their roadies. The only downside is mtb is an 18kg steel compare to their carbon RB.