shifter kit cns carb

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    Shift Kit, Bike derailleur problem? (Feel like axle dying) HELP

    SO I had my sick bike parts shifter kit on my bike and i'd say have about 250-300 miles on the bike by now. I haven't been to easy on the bike while changing gears and such because i wasn't quite used to it yet so it would jolt a bit after changing gears and such (I do let go of gas and try to...