Chris NewbyFraser Posted May 24, 2018 Posted May 24, 2018 I am changing my Shimano chainset from a 22/36 to a 24/34 set up.I need guidance on what top pull front derailleur I must get to work smoothly with the new chainset? I had previously put on a 24/36 set up but the chain could not run cleanly through the cage due to its specific design for the 22/36 ratio, no matter how I adjusted it. I am assuming that the same problem will be experienced with the 24/34. Anybody got some info?
Sepia Posted May 24, 2018 Posted May 24, 2018 I have a 3x FD from 21-48 using a Deore FD. As smooth as.Maybe 2x is different?
DieselnDust Posted May 24, 2018 Posted May 24, 2018 Sounds like it just needs to be adjusted for position and cable tension
DieselnDust Posted May 24, 2018 Posted May 24, 2018 Sounds like it just needs to be adjusted for position and cable tension
Alastair_S1D Posted May 24, 2018 Posted May 24, 2018 I am changing my Shimano chainset from a 22/36 to a 24/34 set up.I need guidance on what top pull front derailleur I must get to work smoothly with the new chainset? I had previously put on a 24/36 set up but the chain could not run cleanly through the cage due to its specific design for the 22/36 ratio, no matter how I adjusted it. I am assuming that the same problem will be experienced with the 24/34. Anybody got some info?get one of the newer front mechs from Shimano. Deore M6000, SLX M7000, XT M8000 or XTR M9000. Although I would definitely check tension and high low screws before buying a new front mech.
Chris NewbyFraser Posted May 25, 2018 Author Posted May 25, 2018 get one of the newer front mechs from Shimano. Deore M6000, SLX M7000, XT M8000 or XTR M9000. Although I would definitely check tension and high low screws before buying a new front mech. The set up was as good as be. Tried all angles and heights. The problem from the cage having a bulge at a point which interferes with the chain o a 24. But the 22 tooth ring drops the chain below this bulge = no scraping. I cannot lower the derailleur because of the big ring blocking any further movement. I will keep this updated as i get the new stuff.
100Tours Posted May 25, 2018 Posted May 25, 2018 The set up was as good as be. Tried all angles and heights. The problem from the cage having a bulge at a point which interferes with the chain o a 24. But the 22 tooth ring drops the chain below this bulge = no scraping. I cannot lower the derailleur because of the big ring blocking any further movement. I will keep this updated as i get the new stuff. The bulge makes it sound like you currently have a 3x front derailleur? 2x derailleurs have straight sides. I would definitely try first with the 24/34 rings to see if this might work (big ring is smaller, fd can be lower, might more easily accommodate the 24 ring). I have frequently had bikes that were picky about the ratios you could install on them. You could always throw away the fd and go 1x10?
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