NOS Tange fork -- crown race loose
09-10-09, 01:33 PM
#1
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NOS Tange fork -- crown race loose
1" threaded Tange chrome fork:
I've now tried three crown races: a Campy, then a Ritchey and a generic headset from a Japanese Bianchi too. All three races are loose, and not just enough to spin, but to slide around the base of the steerer a little bit. Do I have a small steerer on this fork?
The shop says to keep my fork in the trunk and try to fit every headset I come across. That's pretty disconcerting advice.
I've now tried three crown races: a Campy, then a Ritchey and a generic headset from a Japanese Bianchi too. All three races are loose, and not just enough to spin, but to slide around the base of the steerer a little bit. Do I have a small steerer on this fork?
The shop says to keep my fork in the trunk and try to fit every headset I come across. That's pretty disconcerting advice.
09-10-09, 01:47 PM
#2
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1" threaded Tange chrome fork:
I've now tried three crown races: a Campy, then a Ritchey and a generic headset from a Japanese Bianchi too. All three races are loose, and not just enough to spin, but to slide around the base of the steerer a little bit. Do I have a small steerer on this fork?
The shop says to keep my fork in the trunk and try to fit every headset I come across. That's pretty disconcerting advice.
I've now tried three crown races: a Campy, then a Ritchey and a generic headset from a Japanese Bianchi too. All three races are loose, and not just enough to spin, but to slide around the base of the steerer a little bit. Do I have a small steerer on this fork?
The shop says to keep my fork in the trunk and try to fit every headset I come across. That's pretty disconcerting advice.
Is this a new fork? Have you measured the fork crown seat with a set of calipers? There are different sizes of fork crowns and hopefully you just need to find the correct headset for your fork. If the fork is undersized from the factory (unlikely) or someone made it too small by over-zealous cutting there are still options but I wouldn't do anything until you know the current size of the fork crown seat.
09-10-09, 03:20 PM
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You might need an older Stronglight, they mad a variation that had a reduced crown race diameter.
If it just rotates verses rattle loose, I have had to peen a series of craters for lack of a better term to snug up a crown race on a bad boy old Italian fork. Be sure to place them to do the job, not too high and not too low, inspect the crown race first.
If it just rotates verses rattle loose, I have had to peen a series of craters for lack of a better term to snug up a crown race on a bad boy old Italian fork. Be sure to place them to do the job, not too high and not too low, inspect the crown race first.
09-10-09, 04:39 PM
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repechqe: THAT is a risky approach! How do you ensure concentricity!
Samwiches: Pics would help.
Samwiches: Pics would help.
09-10-09, 06:11 PM
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72 Frejus (for sale), Holdsworth Record (for sale), special CNC & Gitane Interclub / 74 Italvega NR (for sale) / c80 French / 82 Raleigh Intl MkII f&f (for sale)/ 83 Trek 620 (for sale)/ 84 Bruce Gordon Chinook (for sale)/ 85 Ron Cooper / 87 Centurion IM MV (for sale) / 03 Casati Dardo / 08 BF IRO / 09 Dogma FPX / 09 Giant TCX0 / 10 Vassago Fisticuff
09-10-09, 06:26 PM
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If there's no air gap, or in other words if its finger tight, raising up the metal doesnt interfere with concentricity. I've had good luck 'punching' evenly spaced dots with a philips head screw driver.
09-10-09, 07:16 PM
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It has rescued many a customer's steel fork for me, I would not try it on Al Alloy or carbon of course...
With the exception of one guys Windsor, I unbolted the brake and removed it and the crown and all below dropped to the floor.... Thrilling.
09-10-09, 07:22 PM
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The Velo Orange Grand Cru uses a split 26.4 crown race that might solve your problem if you have room for its 42mm stack height. It sure is nice to be able to install a crown race with just your fingers.
09-10-09, 10:15 PM
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09-11-09, 10:40 PM
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A serious approach, chuck the steerer into a lathe and knurl the ring. Basically a fancy version of Jim's answer.
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Still stupid and seriously neglected..
Still stupid and seriously neglected..
09-12-09, 06:01 AM
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09-12-09, 11:24 AM
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09-12-09, 02:22 PM
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once you have measured and found the correct sized headset, and if it's still loose, then you should know that I've had success with red locktite to get a loose crown race to sit still
info on headset sizes:
https://www.sheldonbrown.com/cribsheet-headsets.html
Allan
info on headset sizes:
https://www.sheldonbrown.com/cribsheet-headsets.html
Allan
