Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

loose crown race - How much of a problem is this really?

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

loose crown race - How much of a problem is this really?

Reply

Old 01-18-08, 05:50 PM
  #1  
marqueemoon
or tarckeemoon, depending
Thread Starter
 
marqueemoon's Avatar
 
Join Date: Dec 2005
Location: the pesto of cities
Posts: 7,020

Bikes: Davidson Impulse, Merckx Titanium AX, Bruce Gordon Rock & Road, Cross Check custom build, On-One Il Pomino, Shawver Cycles cross, Zion 737, Mercian Vincitore, Brompton S1L, Charge Juicer

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
loose crown race - How much of a problem is this really?

The race will go down all the way and isn't rattling around or anything but it's loose enough to be able to be pulled off with fingers with a little effort. The problem appears to be with the diameter of the race, not the fork.

Is there any solution other than getting a new race? What kind of damage or performance issues could result from using a loose race?
marqueemoon is offline  
Reply With Quote
Old 01-18-08, 05:53 PM
  #2  
operator
cab horn
 
Join Date: Jun 2004
Location: Toronto
Posts: 28,321

Bikes: 1987 Bianchi Campione

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
SHim it or silver loctite.
operator is offline  
Reply With Quote
Old 01-18-08, 07:38 PM
  #3  
Soil_Sampler
A little North of Hell
 
Join Date: Mar 2006
Posts: 4,892
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 70 Post(s)
what is your fork? what is your headset?
Soil_Sampler is offline  
Reply With Quote
Old 01-18-08, 08:45 PM
  #4  
marqueemoon
or tarckeemoon, depending
Thread Starter
 
marqueemoon's Avatar
 
Join Date: Dec 2005
Location: the pesto of cities
Posts: 7,020

Bikes: Davidson Impulse, Merckx Titanium AX, Bruce Gordon Rock & Road, Cross Check custom build, On-One Il Pomino, Shawver Cycles cross, Zion 737, Mercian Vincitore, Brompton S1L, Charge Juicer

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Originally Posted by Soil_Sampler View Post
what is your fork? what is your headset?
It's the stock steel fork for a Spicer standard track frame (same frame as a KHS Flite 100). The headset is a Chris King. 1" threadless fork and headset. The crown race appears to have been installed and deinstalled a few times and measures wider than it should.

I don't mind buying a new one if that's the best way to solve the issue. I'm just curious if there is another way. I'm not sure I understand how shimming it would be done.
marqueemoon is offline  
Reply With Quote
Old 01-18-08, 08:51 PM
  #5  
well biked 
biked well
 
well biked's Avatar
 
Join Date: Jul 2005
Posts: 7,249
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 68 Post(s)
If it were mine, and since you feel like it's the crown race that's distorted (Chris King calls them baseplates), I'd order a new one for $10:
http://www.chrisking.com/parts/baseplates.html

Last edited by well biked; 01-18-08 at 08:57 PM.
well biked is offline  
Reply With Quote
Old 01-18-08, 09:18 PM
  #6  
Soil_Sampler
A little North of Hell
 
Join Date: Mar 2006
Posts: 4,892
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 70 Post(s)
+1 Chris King:
We offer baseplates in stainless steel and titanium in 1" and 1 1/8" sizes.
Baseplates with undersize bores of up to minus .2mm (-.008") are also available to accommodate non-conforming fork steerer tube mounting dimensions.

If you think the race is out of spec(I think it could be the fork)you could dimple the inside of the race in 4 spots(every 90 degrees)with a punch, sort of a poor mans knurling.
Soil_Sampler is offline  
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service