buckfifty

Hi, I removed the shift cable from the front deraileur's binding bolt to adjust some things with my shifters. I then reinstalled the cable into the binding bolt, making sure to place it along the little cable groove. However, my front deraileur won't shift up to the big ring.

Thanks

cobba

Indexed shifters ?

buckfifty

road shifters

FBinNY 

Not enough information, but assuming it used to shift fine, and the only thing you did was replace the wire, I'd guess that you simply didn't tension the cable enough.

Try shifting by pulling the bare wire away from the frame and if that works, it confirms my guess. If you have a barrel adjuster, simply turn it out until the FD functions correctly, Otherwise, loosen the pinch nut and pull the wire down a bit more.

Often even if you feel you've pulled out all the slack it isn't enough, so manually shift to the large chainring and let the chain hold the cage out there giving you a bit more room to work with, but now you have to remember to leave enough slack for it to shift back to the inner ring.

badamsjr

Like FB says, IF it was working before, you may not have tightened the cable enough to get it on the big ring. I always shift to the small ring before making this adjustment, then pull all the slack out of the cable before tightening the pinch bolt. Good luck.

buckfifty

yeah, it was the tension.

Thanks!

Captain Blight

FWIW, almost all shift problems of this sort can be traced to cable tension in one way or another. Which only makes sense, given that either more or less cable tension is what makes the derailleur move. If it isn't a chain/chainring wear issue, it's almost certainly cable tension.

Al1943

This problem is often due to the shifted not being in it's lowest position, with all cable out of the shifted, when the cable is attached to the dérailleur.