why wont my 2*9 setup work on my xc bike?

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  • why wont my 2*9 setup work on my xc bike?
  • set the limit stops correctly?

    Premier Icon wwaswas
    Subscriber
    Van Halen
    Member

    why will that solve my problem? i`ll just have a horrible crunchy noise as the chain rubs the front mech?

    its the chainring end thats the problem not overshifting at the cassette end.

    Premier Icon wwaswas
    Subscriber

    it’s the stops on the front mech that need adjusting.

    STATO
    Member

    set the limit stops correctly?

    ^ completely missing understanding his problem.

    Van, the chain is falling off the Middle ring to the granny when trying to shift to the 32t on the back, correct? If so it may be that the chainline on the cranks is wider than your other bike. Can you fit a shorter BB?

    Premier Icon GavinB
    Subscriber

    Have you checked the chainline?

    Also are you sure the ISIS BB is the right width for the frame, as that would knock out the chainline.

    Edited: STATO stealing my ideas…

    fair point

    *notes to read the question properly next time*

    Van Halen
    Member

    buggered if i know what bb axle length i need. i got the ‘standard’ 113 length axle. i see you can get a 108. i`ll have to see if my cranks would work with it.

    seems more faff than its worth though. but i suppose that’ll teach me to ‘upgrade’

    why oh why wont someone produce a light 8sp cassette…

    Premier Icon njee20
    Subscriber

    So when you go big/big it dumps onto the inner ring, oui? Sounds like a chainline issue.

    why oh why wont someone produce a light 8sp cassette…

    Because it became obsolete 13 years ago?

    STATO
    Member

    why oh why wont someone produce a light 8sp cassette

    You need to go on retrobike and ask for an 8spd XT or XTR.

    Van Halen
    Member

    new 11-32 sram casette

    new 9sp kmc chain

    new deore 36t chainring

    holzfeller/isis cranks

    x7 mech.

    i cant shift to 32-36 without the chain jumping off the chainring on the inside?? the chainring looks straight. it happened from first setup and i cant think why it doesnt work. I`d never be able to run 1*9 as it really catches the chainring.

    it works on my big bike (well 32 front 34 rear) and it worked on this bike when it was a 2*8 setup (same ratios)?? i cant see the mech being at fault?

    any ideas – i’m confused.

Viewing 11 posts - 1 through 11 (of 11 total)

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