tedious brake mount question: shimano brakes on avid 185mm post mount adapter

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  • tedious brake mount question: shimano brakes on avid 185mm post mount adapter
  • Premier Icon spawnofyorkshire
    Subscriber

    I’m pretty certain I’ve read the answer already but want to double check. Sorry if
    I’ve just bought some Deore XT’s to replace Elixr’s.
    I was running 185mm front with 160mm rear and have bought a new 203mm front and want to run the original 185mm disc on the rear.
    My bike has post mount rear rather than IS so i was going to switch the disc and adapter over straight over (after a good clean).

    Do i need washers to space out the new caliper to the correct position or will it just drop straight on?

    donal
    Member

    I may be wrong, but the washers you use for Elixirs take into account the thickness of the calliper. This is why they are still needed when using a 160mm rotor on the front with a post mount fork. Thus, the 185 adaptor should work with all callipers to fit a 185 rotor. However, I think the sting is that the calliper and adaptor may not sit flush with each other as avid compensate for this with the tri align system. As I said I may be wrong and there is no harm trying..

    Premier Icon spawnofyorkshire
    Subscriber

    thanks donal,

    that’s pretty much what i was thinking, but wanted someone to say it as well. Gonna give it a crack tonight and see how it goes

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