What part is this? Cervelo P2C
04-12-21, 02:37 PM
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What part is this? Cervelo P2C
Hello everyone I am wondering what this part is for a cervelo p2c I think it goes around the fork as some sort of compression bearing but I'm not sure. It is plastic and seems to fit around the fork tube.
04-12-21, 02:46 PM
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You're gonna have to do better than that if you want help.
04-12-21, 03:57 PM
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04-12-21, 04:29 PM
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Is it a circle with a break in it? It may be the wedge that is the last piece to put into the top of the headset before you put your spacers and stem on.
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04-12-21, 04:38 PM
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04-12-21, 04:50 PM
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Still trying to make ten posts to put up the picture this will get me one closer but yes it is a circle with a break in it and its tapered
04-12-21, 06:24 PM
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2) even if they do, it's an optional part. Basically just a differently shaped spacer
So I will rephrase. The split ring is the last essential piece before the spacers and stem. Here's a diagram from wikipedia. The piece we're talking about is labeled the "conical compression ring"
04-12-21, 06:51 PM
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That diagram is not accurate. I have NEVER seen a threadless headset that didn't have a bearing cover/dust cover over the compression ring. I'm not sure where you're from but they ALL have this part. It is not a spacer, but can be thin like the Cane Creek in the first photo or tall like the FSA in the second photo.
04-12-21, 08:34 PM
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Seen an Aheadset?
04-12-21, 09:55 PM
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That's an ancient ball-in-retainer headset. It's quite unique in that the bearing cover is tapered internally and the compression ring goes into it...very unique. I'll say no modern headset comes w/o a bearing cover. I forgot about the original Aheadset.
04-12-21, 10:33 PM
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Same concept without the cartridge. The compression ring is to center the top of the steerer.
04-13-21, 10:24 AM
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That design stuck around much longer than the original Aheadset model and it is certainly not unique, nor ancient. I have one stock on a 2008 bike from after they changed the brand to Cane Creek, and that same Cane Creek model was still available on Amazon until covid messed up the supply chains:
https://www.amazon.com/Cane-Creek-VP.../dp/B0019QHLX8
https://www.amazon.com/Cane-Creek-VP.../dp/B0019QHLX8
