How to Replace Derailleur on Mountain Bike: A Step-by-Step Guide
To replace a derailleur on a mountain bike, start by first removing the old derailleur. Then, install the new derailleur by attaching it to the derailleur hanger and threading the chain through the jockey wheels. Adjust the limit screws and cable tension to ensure smooth shifting and proper alignment. Test ride the bike to make sure everything is working correctly.