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Crown Race Spacer

  • 06-01-2016 9:29pm
    #1
    keoclassic
    Registered Users, Registered Users 2 Posts: 368 ✭✭


    Hey Folks

    I'm currently building a px rt 80 and have run into an issue when assembling the headset and forks.The bike uses an integrated headset, which is an FSA Orbit C-40 No.42 ACB Tapered Headset (OEM Only) / Black / 9 mm. The problem I am having is that when i install the crown-race and mount the bearing on top of it, the assembly still allows the bottom of the head-tube to contact with the top of the forks.This is a problem! Can I put some sort of a spacer under the crown race to allow sufficient clearance between the fork and the frame? we are talking only about 1 mm here.

    Cheers.


Comments

  • #2
    onthefringe
    Registered Users, Registered Users 2 Posts: 712 ✭✭✭onthefringe


    keoclassic wrote: »
    Hey Folks

    I'm currently building a px rt 80 and have run into an issue when assembling the headset and forks.The bike uses an integrated headset, which is an FSA Orbit C-40 No.42 ACB Tapered Headset (OEM Only) / Black / 9 mm. The problem I am having is that when i install the crown-race and mount the bearing on top of it, the assembly still allows the bottom of the head-tube to contact with the top of the forks.This is a problem! Can I put some sort of a spacer under the crown race to allow sufficient clearance between the fork and the frame? we are talking only about 1 mm here.

    Cheers.

    the right bearing is in the right end of headtube??
    they differ sometimes in depth


  • #3
    keoclassic
    Registered Users, Registered Users 2 Posts: 368 ✭✭keoclassic


    Ya, its tapered. Its impossible to mix them up, one is 1 1/8 the other 1.5.


  • #4
    MediaMan
    Registered Users, Registered Users 2 Posts: 454 ✭✭MediaMan


    I'd suggest get onto PX. If they provided all the pieces then I'd say the responsibility lies with them. I'd be worried that putting a spacer under the crown race could cause problems in the long run.


  • #5
    onthefringe
    Registered Users, Registered Users 2 Posts: 712 ✭✭✭onthefringe


    Have to agree
    If they gave you the correct headset - then there's an issue with frame
    I wouldn't bodge it with a shim ..
    Crown races need to sit firmly on the shoulder of the steerer tube ..
    A shim - no matter how slim may cause play that will multiple as it moves up the steerer
    Bring it back ..


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