Need help with crank arm

Phantomous
Phantomous Posts: 7
edited July 2017 in MTB workshop & tech
Hey guys,

I need some help with my bike, the left crank arm is extremely loose and can be wobbled side to side with ease. I need your expertise to help me identify what type of crank I have, and what I must do to tighten it? Thanks.

vYug9
http://imgur.com/a/vYug9

Comments

  • whyamihere
    whyamihere Posts: 7,700
    It's a Sram GXP crank, seems to be branded Bontrager though. 8mm hex key through the smaller of the 2 hex holes on the non drive side, and tighten it pretty much as tight as you can.

    However, if you'd ridden with it loose, you may well have destroyed the splines, which means a new crankset.
  • Phantomous
    Phantomous Posts: 7
    whyamihere wrote:
    It's a Sram GXP crank, seems to be branded Bontrager though. 8mm hex key through the smaller of the 2 hex holes on the non drive side, and tighten it pretty much as tight as you can.

    However, if you'd ridden with it loose, you may well have destroyed the splines, which means a new crankset.

    Thanks!

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