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Suppose you have a frame with a 1-1/8" to 1.5" tapered head tube and a fork with a 1-1/8" straight steerer tube. It's not a problem, you simply need this 110-Series Conversion Crown Race to adapt the fork's 30mm o.d. crown race seat to the 1.5" lower bearing in your Cane Creek Headset. While we also sell the 40-Series version (and it's exactly the same dimensions as this one), this 110-Series Crown race is their finest offering. It's made of stainless steel and features a Dual-Seal to mate with the lower cup to keep out any gunk that could hamper your headset function.

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Here's what others have to say...


Works great

  • Familiarity:I've used it several times

Used this to install my older 1.125" Reba 29 SL on a new carbon frame that is 1.5" and it works great. Matches perfectly with the headset that cam with the frame. On the mountain there is no flex in the headset that I can tell. Great solution to allow me to keep using the older fork.


Dead simple!

  • Familiarity:I've put it through the wringer

If you have a 1 1/8" straight fork that you want to use on a tapered 1.5 -> 1.125 frame, all you have to do is use this in combination with any Cane Creek headset.

I do not know if it would work with any other headset, but the Cane Creek 40 is the standard for an inexpensive, high-quality headset.