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9 votes
Accepted

Are crown races interchangeable?

In the history of bicycles, no they are not broadly interchangeable in any way. Most bikes in the world or in history have a headset where the crown race is designed to mate dimensionally with the cup ...
Nathan Knutson's user avatar
7 votes
Accepted

Which way to use a crown race removal tool?

Here is a picture of instructions for a tool similar to yours. This picture shows putting a screwdriver in the holes to drive out the crown race. Since yours are threaded I'd put a bolt in each hole ...
David D's user avatar
  • 21.5k
6 votes

Noticed a small scratch in the integrated crown race of my carbon fork. How fragile is this part of the fork?

That scratch/indent looks absolutely tiny and harmless. As for the aluminium pieces: As coincidence would have it I recently took my fork out because of creaking noises as well. I was quite surprised ...
Michael's user avatar
  • 27.8k
4 votes

Are crown races interchangeable?

Yes, there are differences that can prevent this. Headset bearings come in several angles on the inner and outer diameter of the part. 36 degrees and 45 degrees are common. The angle on the crown race ...
Tristan C.'s user avatar
4 votes

Are crown races interchangeable?

The other two answers are fine but they don't give a fair picture. You have effectively asked two questions: Are crown races interchangeable? and Are there differences between specific headsets? So ...
Noise's user avatar
  • 14.1k
2 votes

Grease carbon fork before crown race installation?

What is commonly called carbon fiber should actually be referred to as carbon fiber-reinforced plastic, or CFRP. It consists of carbon fibers in a matrix. In the cycling industry, the matrix is ...
Paweł's user avatar
  • 741
2 votes

Can't fit fork with integrated crown race fully into frame

It may be worth checking with the supplier that the replacement fork should be a drop-in replacement for the old one. Given the different part numbers, they might have simply had a picking error at ...
Criggie's user avatar
  • 125k
2 votes

How to adjust fork and crown race?

Of the numbers you give, the 30.2 doesn't really stand out. A lot of crown race seats measure about that. An interference fit of 0.1mm at the crown race is seen as about optimal to avoid distorting ...
Nathan Knutson's user avatar
2 votes
Accepted

Is this an integrated crown race?

Probably not, and it doesn't look like it. Integrated crown races on road bikes are usually found on all-carbon forks and they were also nascent then if they existed at all. Also, the part indicated ...
Nathan Knutson's user avatar
2 votes
Accepted

Should an integrated crown race of an carbon fork be greased before assembly?

Yes, it should. Grease all the contact surfaces.
MaplePanda's user avatar
  • 15.6k
1 vote

Which way to use a crown race removal tool?

Here are posted instructions from a review of a similar tool: The key to using this is not to overdo it. Just tighten the tool slowly and evenly enough to get the edges under the crown race then turn ...
Armand's user avatar
  • 2,835
1 vote

Slotted or unslotted crown race with tapered carbon steerers

The Cane Creek 40 system uses cartridge bearings. The crown race of this bearing system is generally to support cartridge bearing, ie: it doesn't actually have bearing balls "racing" on it. ...
Jeff's user avatar
  • 10.5k
1 vote

Should an integrated crown race of an carbon fork be greased before assembly?

My gut instinct says no grease. Point one, The Park tool manual makes no mention of applying grease to the fork. Second point is that generally you don't want grease in continuous contact with carbon ...
mikes's user avatar
  • 18.7k
1 vote

Should an integrated crown race of an carbon fork be greased before assembly?

It seems like the fork has an integrated crown race. Should it be greased before assembly and pre-loading? Current headsets have a conical or spherical seat for the cartridge bearings. The purpose of ...
juhist's user avatar
  • 19k

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