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Numpty chainring question

pollys_bottpollys_bott Posts: 1,012
edited March 2016 in The workshop
Is there a right / wrong way round to fit them? Recently stripped bike for a deep clean and ever since I put the crank back together the up shifting has been pants. To my un-tutored eye both sides of the chain rings look the same but are the teeth different on one side to assist with gear changing? They're Stronglight rings and currently the word 'Stronglight' is facing outwards, can't remember if it was before... :oops:


  • nicklousenicklouse Posts: 50,675 Lives Here
    Yes there is a correct way.

    There is normally a marker of some type showing the crank arm position.

    Pictures of the rings would be good to advise what the mark/feature is.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • pollys_bottpollys_bott Posts: 1,012
    Ah right... there is a small hole drilled through, does that need to be behind the crank arm? Plus I realise now that the two sides are different, one side slopes towards the teeth & the other side has an edge/lip; if that makes sense..? I did have the slopey side facing in...
  • The RookieThe Rookie Posts: 27,809
    Any marker will be to go behind the crank arm.

    Any lifting ramps or pins will be on the smaller chainwheel side of the chainwheel.
    Current steed - Whyte T129, 2013 frame, mongrel Revelations, Giant dropper, Stans S1 wheelset. 12, Magura Trail Sport brakes, 1x11. 12.8Kg
  • pollys_bottpollys_bott Posts: 1,012
    Swopped it round and shifting much better... funnily enough... thanks both.
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