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how to remove lower headset race from carbon fork?(5 posts)

how to remove lower headset race from carbon fork?DougSloan
Jan 7, 2003 4:59 PM
I have the Park headset race remover tool (u-shaped thing), but it won't fit around two sort of fat all carbon forks. The only other way I can see it to pry it off with a screwdriver, but I'd have to lever against the carbon; that seems bad.

Any suggestions?

Thanks.

Doug

P.S. Remember my Star Carbon screw up? Well, that fork has enough steer tube to fit my Bianchi EV2 size 55 with a Record headset and ITM Millenium stem. The head tube is short than the Colnago. So, anyone with a 4 1/2 inch tall or smaller head tube need a good fork?
Big bladed screw driverKerry
Jan 7, 2003 5:54 PM
If the crown race protrudes fore and aft from the fork, then you should be able to tap it alternately and get it to move. That is better than trying to jam a blade between the race and the fork - that approach makes for much higher point loading forces.
re: how to remove lower headset race from carbon fork?Juanmoretime
Jan 7, 2003 5:59 PM
Doug, Usually some of the edge or the race sticks out beyond the front and back of the fork crown. I will turn the fork upside down and tap gently with a plastic mallet and a 12" piece of 3/8" threaded rod working from the front to the back side until I rock it off. I hope this helps.
re: how to remove lower headset race from carbon fork?brider
Jan 8, 2003 7:48 AM
Something I've done to get cartridge bearings to move of an axle is this: tap the axle with a hammer (protect the end of the axle so it doesn't mushroom), the weight of the bearing is enough to get it moving without damaging the races. Might work with the fork as well. Use a piece of wood to protect the steerer tube, and give it a few good whacks. I think the press fit on a crown race is a bit tighter than cartridge bearings, so it may not work, but it's worth a try.
Ummm, I don't think so.jw25
Jan 8, 2003 10:33 AM
In my limited experience, a crown race fits much tighter than press-fit cartridge bearings. Actually, this in itself made me nervous when installing my Columbus Muscle, which has a full carbon crown. I was as gentle as possible, but I still had to pound the race on to get it seated.
Of course, I figure they know what they're doing, and that things are reinforced there to resist the stresses.
The good news is, I've read somewhere that headset makers are realizing that a super-tight fit isn't necessary, so they'll be making crown races that fit looser, more comparable to a press-fit bearing.
And some headsets have a split lower race (I have an FSA and Cane Creek with this feature), so installation is tool-free, but using this on a carbon crown gives me the willies.
I think the best bet to get that thing off is a plastic-faced mallet and a larger pin-punch, assuming the race protrudes enough.