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9 speed chainset

Discussion in 'Bicycle Mechanics and Repairs' started by TAV, 13 Jan 2018.

  1. TAV

    TAV Über Member

    Location:
    mountainash
    Hi will a 9 speed chainset work with a 8 speed chain and groupset as im trying to put a 9 speed tiagra chainset on my bike with a 50 34 setup.
     
  2. Smokin Joe

    Smokin Joe Legendary Member

    Yes.
     
  3. OP
    OP
    TAV

    TAV Über Member

    Location:
    mountainash
    I asked this guy who was selling one from a shop on ebay and he told me that it wouldn't because the distance between the chainrings would be a different size and i would have problems with the shifting because the difference in size with the chains.
     
  4. raleighnut

    raleighnut Guru

    Location:
    On 3 Wheels
    9 speed chains are slightly thinner but as long as you stick to an 8spd set up (including chain) you'll be fine. I use a 105 10spd crank on my Raleigh Equipe with the rest being 6spd.
     
  5. OP
    OP
    TAV

    TAV Über Member

    Location:
    mountainash
    Cheers for that info great news i think im going to go for a 10 speed chainset then.
     
  6. Ajax Bay

    Ajax Bay Über Member

    Location:
    East Devon
    As a rule of thumb, one speed different on the chainrings will work fine.
    Sheldon is worth reading: about 2/3rds down this page.
     
  7. gbb

    gbb Legendary Member

    Location:
    Peterborough
    I run a 9 speed Tiagra chainstet on my 8 speed Sora setup, works every time.
     
    raleighnut likes this.
  8. raleighnut

    raleighnut Guru

    Location:
    On 3 Wheels
    You could even put an 11spd chainset on, the pitch is the same it's just the rings are a fraction thinner so may wear a bit more quickly (but no faster than they'd wear with a full 11spd transmission and chain as they use the same face of the teeth that any 1/2 inch pitch chain does)
     
    Smokin Joe likes this.