when I am pedaling hard uphill or putting a lot of force on the crank, my chain keeps trying to jump, or maybe trying to shift gears on its own. not really sure what this issue is, i am fairly new to biking. I bought a 2012 diamondback overdrive last november.
is this just the derailer needing tuning? the bike is fairly new so i doubt it is a bent chain, and all the teeth look okay. any advice on how to fix it?
here is what I have:
Diamondback Bicycles - 2012 Overdrive
#1 bent Derailleur hanger
#2 worn chain-cassette
#3 cable worn/thread broken
if it just started happening and the bike is fairly new it's almost 90% the hanger got tweeked on a stick or rock or just got bumped moving the bike around...
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