I show the most common causes for chains that skip, slip, jump gears while pedaling (auto-shifting/phantom shifting derailleur), especially while under torque like climbing up a hill or standing on the pedals. And explain what needs to be done to fix them.
Straightening A Bent Derailleur Hanger
How To Measure Bike Chain Wear With A Ruler:
How To Replace A Bike Chain
How To Change A Cassette On A Bike
How To Change A Freewheel On A Bike
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