A very brief test ride confirms it's all working fine. 1.5 turns on the B screw to move the jockey down the ~4mm extra radius of the 36T compared to 34T.
@@wiedsesteurs6043 As long as you don't use 'big-big' then no, otherwise possibly. I have my Di2 setup to change the front a couple down from that anyway, so should never be an issue.
I am the “someone” who asked about this…. appreciate the video!! ❤ Shimano is usually pretty conservative with their cassette compatibility so unless you have a RD hanger that is right on (or below) the bottom end of the spec, the Ultegra RD is likely to work with the upcoming 11-36. As an example, heaps of people were able to fit 11-40 cassettes onto GRX 812 derailleurs which were theoretically only rated to 34t. That’s a whopping 6t difference whereas in this case it’s only 2t. I’m hearing the 12sp 11-36 may be some weeks/months away still, unfortunately. Likely to be available for retail alongside GRX and/or 105 12sp mechanical. Cheers big fella
@@thedownunderverse everything to do with cycling is made in China or Taiwan.. (get sick of normies who say what u said!)that is a FACT! they may assemble things in western countries.. but all is made in China.. but hey, keep paying the premiums!! haha... good luck... I buy almost everything directly from China... from my frames.. to clothes.. everything! and if you know where to go.. WAY BETTER than any western corporate branded crap! and there's about to be a massive game changer.. as now China has electronic groupsets that are a fraction of the cost of the usual suspects (about time!) (and are having rave reviews!!) Have u ever watched any of the China Bike Shows this year?? People who make your statement just don't know! What bikes you ride?? what clothes you wear???? research where they're made...CHINA! Do I agree with that? not really.. but I don;t agree with being ripped off by the Western Corporations either!! The Chinese sales persons are a delight to deal with to... and a warranty means a warranty!! unlike when my Pinarello frame cracked.. and could get no reply from anyone!! or when my Shimano dura-ace/Ultegra cranks cracked/snapped (on 3 sets to date!!) I buy chinese cranks now!! Anyways...what i'm trying to tell you is, that was 1 dumb statement!! As you CANNOT AVOID! everything you have with cycling is most likely 99% made in China!! - GOOD LUCK!
I have Dura-ace 9200 RD which should be at same spec as Ultegra 8150. Will my Dura-ace also work fine with big cassette 11-36 ? Now in the market 11-36 from 105 12sp is available , also Rotor 11-36 12 sp also available at much lighter weight at about 230g only (360g+ for 105)
Very useful vid, thanks. What 11-36t cassette is recommended for this? Shimano CS-HG710-12 11-36T? I note Shimano don’t advise against doing this, in fact they say “It is compatible with 12-speed and road 11-speed freehub bodies and can be used with any of Shimano’s 12-speed road drivetrains.”
May I ask, who has actually put an 11-36 on and which exact cassette? Should I put a 105 cassette on and give it a shot or get hands on the new GRX 12 speed cassette (is that just a MTB cassette that already exists + change to micro spline right). I want to do this but dont want to screw up how nice my RD 8100 works (top notch). Thanks all!
@@alexlithgowsmith thanks so much. I’ll try it. It’s an expensive. I’ll throw a New Chain on with another link or two. With the new 12speed mechanical GRX, are we saying the advertised cassette is the 105? Or will they truly design a hyper glide plus cassette for that group? I do know that will take Microspine just curious I have an allied Echo and the real challenges tire clearance versus the Ultegra front derailer if GRX comes out electronic and 12 speed, I will change the Cranks and the derailer to get me much better lower gearing plus more tired Clarence, assuming GRX derailer gives more space in my frame. That might move me from 38 mm tires to 40 or certainly 42 mm. Then I am completely satisfied with my Allied echo.
I see ROTOR now has a 12-speed 11-36T and a 11-39T Cassette... not quite 11-40T but that would be great if it fits the Ultegra R8100 without Woolftooth no?
Based upon how far he was able to move down the cage in this vid it looks like the Ultegra Di2 rear derailleur would shift an 11-39 cassette. If for some reason it did not the 105 Di2 rear derailleur would certainly work and you could just swap out the derailleurs.
with the 11 Speed R8000 groupset, we needed a Wolftooth link to install a 11-42T Cassette but 11-40T was fitting without needing a Woolflink because the RD had a sort of a similar factory installed link on the RD. So I expect, with the new 12-Speed R8100 groupset you should be able to push a 11-40T Cassette wothout it. For 11-42T I suppose we need to wait for Wolftooth to come up with a new link. However, the bigger issue now is there aren't any 12-speed 11-40T or 11-42T cassettes on the market that are shimano compatible. Right? Even the 105 11-36T cassette is NOT hyperglide+ like the Ultegra cousin's cassettes. So we can put 11-36T but expect a little degradation in shifting quality.
difference in radius of a 34 to a 36 cassette is roughly 3mm. Assuming from tooth to tooth we have 10mm (which I believe is pretty accurate) I don't believe 3mm is such a big difference, the derailleur should accommodate for some tolerances, not all frames are equal...
The answer will be that the target market for DA/Ultegra typically won't need 36T cassettes, so they've optimised the RD cage to work 11-34 max. It'll work (unofficially) with 36T, but it will not work /quite/ as well - of course, most riders will never notice the difference and also won't notice the difference between HG and HG+.
That's such a useful video as I'm planning to install a 36T cassette on my Shimano Ultegra Di2 8150 - thank you!
A very brief test ride confirms it's all working fine. 1.5 turns on the B screw to move the jockey down the ~4mm extra radius of the 36T compared to 34T.
Which exact cassette did you use? 105 11-36?
Yes, that's the only 11-36 12sp.
@@alexlithgowsmith and no more chain links needed with a 11-36?
@@wiedsesteurs6043 As long as you don't use 'big-big' then no, otherwise possibly. I have my Di2 setup to change the front a couple down from that anyway, so should never be an issue.
Guys are we talking about the CS-HG710-12 cassette?????
Very interesting to see the difference.
Thinking we need to see the 11-36 installed and how it works.
I am the “someone” who asked about this…. appreciate the video!! ❤
Shimano is usually pretty conservative with their cassette compatibility so unless you have a RD hanger that is right on (or below) the bottom end of the spec, the Ultegra RD is likely to work with the upcoming 11-36. As an example, heaps of people were able to fit 11-40 cassettes onto GRX 812 derailleurs which were theoretically only rated to 34t. That’s a whopping 6t difference whereas in this case it’s only 2t. I’m hearing the 12sp 11-36 may be some weeks/months away still, unfortunately. Likely to be available for retail alongside GRX and/or 105 12sp mechanical. Cheers big fella
@@martintramuntbikemallorcak481 sounds interesting, glad it’s working for you. Personally I will avoid Chinese products at all costs
@@thedownunderverse everything to do with cycling is made in China or Taiwan.. (get sick of normies who say what u said!)that is a FACT! they may assemble things in western countries.. but all is made in China.. but hey, keep paying the premiums!! haha... good luck... I buy almost everything directly from China... from my frames.. to clothes.. everything! and if you know where to go.. WAY BETTER than any western corporate branded crap! and there's about to be a massive game changer.. as now China has electronic groupsets that are a fraction of the cost of the usual suspects (about time!) (and are having rave reviews!!) Have u ever watched any of the China Bike Shows this year?? People who make your statement just don't know! What bikes you ride?? what clothes you wear???? research where they're made...CHINA! Do I agree with that? not really.. but I don;t agree with being ripped off by the Western Corporations either!! The Chinese sales persons are a delight to deal with to... and a warranty means a warranty!! unlike when my Pinarello frame cracked.. and could get no reply from anyone!! or when my Shimano dura-ace/Ultegra cranks cracked/snapped (on 3 sets to date!!) I buy chinese cranks now!! Anyways...what i'm trying to tell you is, that was 1 dumb statement!! As you CANNOT AVOID! everything you have with cycling is most likely 99% made in China!! - GOOD LUCK!
Completely agree. I was able to run my GRX 812 1x setup with a 46t worked fine!
Huh? The 105/grx 12 speed 11-36 is already available
Really great vid mate. Nice one. Blessings from Dorset.
tried the 105 12 speed 11-36 in my Ultegra 12 speed, it works but the shifting from 11T to 12T is noticeably slow. Other than that it works fine
I was able to make it work with a dura ace 9100 with no modifications using an 11-36, it will shift a tad slower but it's good enough.
I have Dura-ace 9200 RD which should be at same spec as Ultegra 8150. Will my Dura-ace also work fine with big cassette 11-36 ? Now in the market 11-36 from 105 12sp is available , also Rotor 11-36 12 sp also available at much lighter weight at about 230g only (360g+ for 105)
Yeah, the Rotor cassette is a good deal lighter and it also costs more than 5X more than a 105 11-36 cassette. $450 versus about $80. 😀
I’m also wondering if my 9250 DA would with with a 11x36, did you try it?
Very useful vid, thanks. What 11-36t cassette is recommended for this? Shimano CS-HG710-12 11-36T? I note Shimano don’t advise against doing this, in fact they say “It is compatible with 12-speed and road 11-speed freehub bodies and can be used with any of Shimano’s 12-speed road drivetrains.”
Ahh I see the 105 cassette works with this method.
Where can we get those Shimano gages you are using? Shimano part number?
May I ask, who has actually put an 11-36 on and which exact cassette? Should I put a 105 cassette on and give it a shot or get hands on the new GRX 12 speed cassette (is that just a MTB cassette that already exists + change to micro spline right). I want to do this but dont want to screw up how nice my RD 8100 works (top notch).
Thanks all!
GRX uses the existing road cassettes. Only current option is 105 (HG710) AFAIK
@@alexlithgowsmith thanks so much. I’ll try it. It’s an expensive. I’ll throw a New Chain on with another link or two.
With the new 12speed mechanical GRX, are we saying the advertised cassette is the 105? Or will they truly design a hyper glide plus cassette for that group?
I do know that will take Microspine just curious
I have an allied Echo and the real challenges tire clearance versus the Ultegra front derailer if GRX comes out electronic and 12 speed, I will change the Cranks and the derailer to get me much better lower gearing plus more tired Clarence, assuming GRX derailer gives more space in my frame. That might move me from 38 mm tires to 40 or certainly 42 mm. Then I am completely satisfied with my Allied echo.
I see ROTOR now has a 12-speed 11-36T and a 11-39T Cassette... not quite 11-40T but that would be great if it fits the Ultegra R8100 without Woolftooth no?
Based upon how far he was able to move down the cage in this vid it looks like the Ultegra Di2 rear derailleur would shift an 11-39 cassette. If for some reason it did not the 105 Di2 rear derailleur would certainly work and you could just swap out the derailleurs.
Can you fit say an 12 speed 11/40 cassette with or without a wolf tooth on the R8150 di2 Ultegra? Is it even possible for better climbing.
Ever get an answer?
Wolf Tooth say they're not compatible with 12sp. Highly unlikely (I will never say never) you could get it working without an extender.
@@alexlithgowsmithhad no issues since fitted.
with the 11 Speed R8000 groupset, we needed a Wolftooth link to install a 11-42T Cassette but 11-40T was fitting without needing a Woolflink because the RD had a sort of a similar factory installed link on the RD. So I expect, with the new 12-Speed R8100 groupset you should be able to push a 11-40T Cassette wothout it. For 11-42T I suppose we need to wait for Wolftooth to come up with a new link. However, the bigger issue now is there aren't any 12-speed 11-40T or 11-42T cassettes on the market that are shimano compatible. Right? Even the 105 11-36T cassette is NOT hyperglide+ like the Ultegra cousin's cassettes. So we can put 11-36T but expect a little degradation in shifting quality.
will the 11-36t cassette fits on a shimano 105 di2 RD?
Hello! For 105 di2 can you use an ultegra or dura ace cassette to get the hyperglide+?
As long as you're also using a HG+ chain, yes.
difference in radius of a 34 to a 36 cassette is roughly 3mm. Assuming from tooth to tooth we have 10mm (which I believe is pretty accurate)
I don't believe 3mm is such a big difference, the derailleur should accommodate for some tolerances, not all frames are equal...
can ospw make sprocket 36?
Just need a slighter longer chain
Or just don't switch to 36T in the big ring. Di2 helps with that 😉
Nope longer chain not needed only 1.5 turns on the B screw
Can confirm that everything worked fine on the Dragon Devil last weekend (276km with 3800m) with 1.5 turns (actually 1.25 turns, I think)
The xt m1800 can use this 11-36 cassette？
Why in the absolute hell is there not a 11-36 ultegra cassette what in the world is going on I can not imagine a possible reason why there isn’t. WTH
The answer will be that the target market for DA/Ultegra typically won't need 36T cassettes, so they've optimised the RD cage to work 11-34 max. It'll work (unofficially) with 36T, but it will not work /quite/ as well - of course, most riders will never notice the difference and also won't notice the difference between HG and HG+.