50000tears
Senior Member
- Location
- Weymouth, Dorset
My Shimano 105 front derailleur is giving me shifting issues at the moment. It governs a front 34/50 crankset.
It shifts fine across both rings but not fully either way. When shifted to the big ring it doesn't shift far enough over and the 3 biggest gears will rub the derailleur. When this happens I can usually, not always, force it across by giving the shifter another bump to get it all the way over. When in the small ring it rubs the derailleur when on the easiest gear and I cannot correct this when on the bike.
For both of these shifting problems I can move the derailleur to the right position by hand, obviously pretty useless but shows that it is not a barrell adjustment needed or the limit screws but something else.
Can anybody help with this?
It shifts fine across both rings but not fully either way. When shifted to the big ring it doesn't shift far enough over and the 3 biggest gears will rub the derailleur. When this happens I can usually, not always, force it across by giving the shifter another bump to get it all the way over. When in the small ring it rubs the derailleur when on the easiest gear and I cannot correct this when on the bike.
For both of these shifting problems I can move the derailleur to the right position by hand, obviously pretty useless but shows that it is not a barrell adjustment needed or the limit screws but something else.
Can anybody help with this?
