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Right crown race size

I'm looking for crown race which will nicely fit inside bearing OD 47mm ID 34.5mm 45* can not find right on online.


  • imposter2.0imposter2.0 Posts: 11,968
    Might help to know what headset you are talking about?
  • It's custom build. Carbon frame headset tube bottom is 1 1/4 ID is 47mm OD is 52 Top is standard 1 1/8. I need to fit 1 1/8 fork in this 1 1/4 bottom head tube. I need link to crown race for the bottom. Bottom bearing size is OD 47mm ID 34.5mm 45*. Standard crown race doesn't seat nice on this bearing.
  • imposter2.0imposter2.0 Posts: 11,968
    edited November 2019
    Framesets are generally designed/manufactured with a specific headset specification/type in mind, so when you say the crown race doesn't 'sit nice' - are you saying it's the wrong type for the headset?
  • Just need specific size of crown race which fit OD 47mm ID 34.5mm 45* degrees. Anyone with link please.
  • imposter2.0imposter2.0 Posts: 11,968
    It's like you're having a different conversation...
  • It's custom build non standard. Parts doesn't fit by standard catalog number.
  • timothywtimothyw Posts: 2,482
    Usually the crown race comes with the headset you buy.

    I'd suggest you ask whoever custom built it.
  • masjermasjer Posts: 1,892
    It sounds like you need a crown race reducer. Not easy to find for 1 1/4 to 1 1/8 which is what you'll need. Something like this might fit
  • Thanks majster. I've just bought standard crowne race and rub it to 1 1/4. It's not perfect but will work for now. If someone needs quick cheap solution to fit 1 1/8 to 1 1/4

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