EddieV Posted November 19, 2023 Share Finished the build at last, tried to use a 10 speed groupset, but snapped the derailleur extender trying to adjust the hanger 🙃 So used a 9 speed STI with a 9speed XT derailleur instead, they are 100% compatible (10sp and up you can't mix components) Tyres are 700c x 44 WTB Byway. Will still change Crankset, but for now she can at least get road time. WaynejG, TyronLab, ChrisF and 1 other 3 1 Link to comment Share on other sites More sharing options...
Jewbacca Posted November 19, 2023 Share 1 hour ago, EddieV said: So used a 9 speed STI with a 9speed XT derailleur instead, they are 100% compatible (10sp and up you can't mix components) On that, you can run a 9 speed Shimano MTB rd with 10 speed shimano STIs and it works beautifully EddieV 1 Link to comment Share on other sites More sharing options...
EddieV Posted November 19, 2023 Share 35 minutes ago, Jewbacca said: On that, you can run a 9 speed Shimano MTB rd with 10 speed shimano STIs and it works beautifully I tried the Ultegra 10sp STI with the 9sp XT derailleur at first, but couldn't get the shifting quite right, were you using a 9 speed or 10 speed cassette? Edit: Just saw this post on another forum. I should have given the 10sti 9der more time ... Just assumed it wouldn't work 😔 Edited November 19, 2023 by EddieV Additional Jewbacca 1 Link to comment Share on other sites More sharing options...
Jewbacca Posted November 19, 2023 Share 16 minutes ago, EddieV said: I tried the Ultegra 10sp STI with the 9sp XT derailleur at first, but couldn't get the shifting quite right, were you using a 9 speed or 10 speed cassette? No man, you wouldn't use a 10 speed shifter with a 9 speed cassette! I had Ultegra 10 speed STIs and an XT 9 speed RD with an 11-40 10 speed cassette and it worked like a dream EddieV 1 Link to comment Share on other sites More sharing options...
EddieV Posted November 19, 2023 Share 1 minute ago, Jewbacca said: No man, you wouldn't use a 10 speed shifter with a 9 speed cassette! I had Ultegra 10 speed STIs and an XT 9 speed RD with an 11-40 10 speed cassette and it worked like a dream 😁 Was just asking Incase ... But edited response above. So should really have tried a bit harder to get 10so to work. Not switching sti's, derailleur and cassete again now, too much work ... 😂 Jewbacca and NotSoBigBen 2 Link to comment Share on other sites More sharing options...
EddieV Posted November 20, 2023 Share Other hacks I applied to the Scout was to use a bottle cage hinge with a cable stopper to get the front derailleur to work ... and shove both the rear and front derailleur cables through the same internal cable routing holes 😉 Edited November 20, 2023 by EddieV Link to comment Share on other sites More sharing options...
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