4
votes
3answers
5k views

Adivce on what to do next with crunching / slipping gears

About two weeks ago I took my bike to the local bike shop to get serviced. It was previously slipping gears under load and at the end I couldn't use the lowest gear going up hill it would just slip ...
1
vote
3answers
9k views

How to fix problem with mountain bike chain falling off gears?

The chain on my girlfriend's bike came off the front gear today, it looks like the back gear changing mechanism isn't handling back-pedaling properly, whenever she pedals backwards the chain slacks ...