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

Possible to install crown race upside down?

Notices
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.

Possible to install crown race upside down?

Old 04-16-07, 08:47 AM
  #1  
keevohn
laterally compliant
Thread Starter
 
keevohn's Avatar
 
Join Date: Nov 2004
Location: PGH
Posts: 728
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Possible to install crown race upside down?

Dumb headset question here:

I recently had my LBS install a new fork on my road bike. I supplied them with the fork (Reynolds Ouzo Pro Integrated), the frame with headset already installed (Syncros Hardcore, non-integrated style) and the Syncros crown race. When I received the bike back, I noticed that there was a gap of at least 4mm between the top of the fork crown and the bottom of the lower headset cup. After tightening down the headset and riding the bike around the block, the headset had loosened up and about 3mm of gap remained. I readjusted the headset before my ride into work this morning, but unfortunately the headset was loose again by the time I got to work (about six miles).

Is it possible that my LBS installed the crown race upside down? The only reason I think this is because the fork I previously had installed on the bike (a non-integrated style Weyless carbon fork) sat pretty much flush with the lower cup of the Syncros headset, and I never had problems with the headset loosening up during a ride. I've never seen a fork with a 3-4mm gap between the crown and the lower cup, especially not on integrated-style forks. Furthermore, I can see that the taper of the crown race is pointing down towards the fork crown, rather than up into the headset cup as I would expect.

If it helps, I can take a few pictures. Thanks in advance.
keevohn is offline  
Old 04-16-07, 09:40 AM
  #2  
Stacey
Non Tribuo Anus Rodentum and off to the next adventure (RIP)
 
Stacey's Avatar
 
Join Date: Dec 2002
Posts: 9,161
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Sounds like maybe... but only a dolt would do something like that.

I just did forks and headset on my MTB this weekend and it was quite evident which was the crown race went on, as you said taper up.

Pictures would be priceless. A trip to the service manager at the LBS is warranted too.
__________________
Stacey is offline  
Old 04-16-07, 10:52 AM
  #3  
keevohn
laterally compliant
Thread Starter
 
keevohn's Avatar
 
Join Date: Nov 2004
Location: PGH
Posts: 728
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Unfortunately it was the owner of the shop that installed the crown race. I've disagreed with him on a number of things before, but I'd hate to think he's mechanically incompetent.
keevohn is offline  
Old 04-16-07, 10:58 AM
  #4  
Stacey
Non Tribuo Anus Rodentum and off to the next adventure (RIP)
 
Stacey's Avatar
 
Join Date: Dec 2002
Posts: 9,161
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Yeah, me too. 'Specially if it was my bike he was working on. Who knows, maybe he had a blonde moment or you might think about finding another shop. Should be plenty of 'em in "the 'burgh".

As I mentioned before. Pics would help.
__________________
Stacey is offline  
Old 04-16-07, 11:01 AM
  #5  
HillRider
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 32,909

Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!

Mentioned: 38 Post(s)
Tagged: 0 Thread(s)
Quoted: 1689 Post(s)
Likes: 0
Liked 568 Times in 420 Posts
Originally Posted by keevohn
Furthermore, I can see that the taper of the crown race is pointing down towards the fork crown, rather than up into the headset cup as I would expect.
This pretty much assures the crown race is upside down. The shop owner may be a good mechanic most of the time but I think he had a "senior moment" this time.
HillRider is offline  
Old 04-16-07, 11:17 AM
  #6  
roadfix
hello
 
roadfix's Avatar
 
Join Date: May 2003
Location: Los Angeles
Posts: 18,618
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 170 Post(s)
Liked 41 Times in 20 Posts
Originally Posted by HillRider
This pretty much assures the crown race is upside down.
I agree.

The top of your integrated fork should practically be flush with the bottom headset cup.
roadfix is offline  
Old 04-16-07, 03:19 PM
  #7  
vpiuva
*
 
vpiuva's Avatar
 
Join Date: Jan 2007
Posts: 3,458
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 1 Time in 1 Post
I would think it difficult to install the race upside down, but there's a first time for everything. I can see that cartridge bearings could be installed upside down, though.
vpiuva is offline  
Old 04-16-07, 05:10 PM
  #8  
HillRider
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 32,909

Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!

Mentioned: 38 Post(s)
Tagged: 0 Thread(s)
Quoted: 1689 Post(s)
Likes: 0
Liked 568 Times in 420 Posts
Originally Posted by vpiuva
I would think it difficult to install the race upside down, but there's a first time for everything. I can see that cartridge bearings could be installed upside down, though.
It would require not paying attention but there is no mechanical reason a crown race can't go on upside down just as easily as right side up. Why it wasn't noticed right away is what I can't understand.

Cartridge or retainer bearings are easy to install upside down. I'm sure everyone who works on headsets has done it at least once.
HillRider is offline  

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 - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.