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Standard to compact, remove chain link?

redvisionredvision Posts: 2,877
edited March 2019 in Workshop
Evening folks,

Quick question, if you change chainset from a 53/39 to a 50/34 how many chain links do you need to remove? (If any)

Thanks

Posts

  • The RookieThe Rookie Posts: 27,803
    The right number to set the chain length correctly, is it correct now?

    If it is correct now, the wrap on the larger chainring has changed by 1.5 teeth (as it only wraps 180 degrees), so depending on which end of the tolerance it was you may ideally need to remove 1 pair of links or none at all.

    I wouldn't bother, that way you can refit a 53T !
    Current steed - Whyte T129, 2013 frame, mongrel Revelations, Giant dropper, Stans S1 wheelset. 12, Magura Trail Sport brakes, 1x11. 12.8Kg
  • redvisionredvision Posts: 2,877
    Thanks for your reply.

    I assume the chain length is currently correct - it's a friends bike, not mine. I will double check before putting on the new chainset though.

    One more query then, when the new chainset goes on will the front mech need lowering? Is anything else needed? It's di2 so the front mech should auto tune right??

    Thanks
  • cougiecougie Posts: 22,512
    Deffo need to lower the front mech. I forgot to do that and threw my chain in a race whilst in a good placing. Damnit.
  • philbar72philbar72 Posts: 2,229
    I find if I go down from 53 to 52 its not bad. 53 to 50 though is a nightmare...
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