Go Back  Bike Forums > Bike Forums > Singlespeed & Fixed Gear
Reload this Page >

question about crown race install

Search
Notices
Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

question about crown race install

Thread Tools
 
Search this Thread
 
Old 07-21-10 | 11:58 AM
  #1  
plowmanjoe's Avatar
Thread Starter
Senior Member
 
Joined: Oct 2009
Posts: 525
Likes: 17
From: NYC

Bikes: 09' Cinelli Vigorelli, 95' trek 950

question about crown race install

i'm installing a crown race on my new cinelli vogorelli steer tube.

never installed this stuff before, first bike build. i noticed though that the crown race they gave me is not a complete circle. they split it so it could expand it looks like. just wondering if this is normal and where the gap should be when i set the crown race.
plowmanjoe is offline  
Reply
Old 07-21-10 | 12:40 PM
  #2  
TejanoTrackie's Avatar
Veteran Racer
Titanium Club Membership
15 Anniversary
 
Joined: Jul 2009
Posts: 11,854
Likes: 913
From: Ciudad de Vacas, Tejas

Bikes: 34 frames + 80 wheels

I've never seen a "split" fork crown race. Are you sure it's the race and not some other part of the headset, such as a dust shield? What brand and type of headset is it? Integrated, semi-integrated, external? Sealed or open bearing? Can you show us a photo of all the parts?
__________________
What, Me Worry? - Alfred E. Neuman

Originally Posted by Dcv
I'd like to think i have as much money as brains.
I see the light at the end of the tunnel, but the tunnel keeps getting longer - me
TejanoTrackie is offline  
Reply
Old 07-21-10 | 12:45 PM
  #3  
Senior Member
Titanium Club Membership
15 Anniversary
 
Joined: Mar 2010
Posts: 1,795
Likes: 146
I don't know how common it is, but some sealed cartridge bearing headsets these days have a crown race that is split and can be installed without tools. It's sort of wrong to call it a "race," as it's not a surface for bearings, it's a fitting to mate the fork crown and cartridge bearing.

That's my understanding, anyway.
desconhecido is offline  
Reply
Old 07-21-10 | 12:50 PM
  #4  
carleton's Avatar
Elitist
 
Joined: Jul 2005
Posts: 15,966
Likes: 94
From: Atlanta, GA
You should ask in the Mechanics forum.
carleton is offline  
Reply
Old 07-21-10 | 02:45 PM
  #5  
rustybrown's Avatar
Senior Member
 
Joined: Jul 2009
Posts: 2,145
Likes: 0
From: DeSouf
Quite odd. I'd be skeptical.
rustybrown is offline  
Reply
Old 07-21-10 | 05:04 PM
  #6  
plowmanjoe's Avatar
Thread Starter
Senior Member
 
Joined: Oct 2009
Posts: 525
Likes: 17
From: NYC

Bikes: 09' Cinelli Vigorelli, 95' trek 950



plowmanjoe is offline  
Reply
Old 07-21-10 | 05:06 PM
  #7  
plowmanjoe's Avatar
Thread Starter
Senior Member
 
Joined: Oct 2009
Posts: 525
Likes: 17
From: NYC

Bikes: 09' Cinelli Vigorelli, 95' trek 950

you can see that it doesn't sit well right now. do you think once i set the star nut in and torque it down that it'll mesh completely?
plowmanjoe is offline  
Reply
Old 07-21-10 | 05:09 PM
  #8  
AEO's Avatar
AEO
Senior Member
 
Joined: Jun 2007
Posts: 12,257
Likes: 5
From: A Coffin Called Earth. or Toronto, ON

Bikes: Bianchi, Miyata, Dahon, Rossin

it's not a race.
It's just a guide.

the race is in the cartridge bearings.

are you sure you have the correct integrated headset for your frame?

there are only about 20 to choose from, and all are incompatible with each other.
__________________
Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
https://sanfrancisco.ibtimes.com/arti...ger-photos.htm
AEO is offline  
Reply
Old 07-21-10 | 05:11 PM
  #9  
TejanoTrackie's Avatar
Veteran Racer
Titanium Club Membership
15 Anniversary
 
Joined: Jul 2009
Posts: 11,854
Likes: 913
From: Ciudad de Vacas, Tejas

Bikes: 34 frames + 80 wheels

Wierd. Something's not right here. Perhaps you can get some info from FSA on this. I definitely wouldn't just try to force it on.
__________________
What, Me Worry? - Alfred E. Neuman

Originally Posted by Dcv
I'd like to think i have as much money as brains.
I see the light at the end of the tunnel, but the tunnel keeps getting longer - me
TejanoTrackie is offline  
Reply
Old 07-21-10 | 05:12 PM
  #10  
plowmanjoe's Avatar
Thread Starter
Senior Member
 
Joined: Oct 2009
Posts: 525
Likes: 17
From: NYC

Bikes: 09' Cinelli Vigorelli, 95' trek 950

Originally Posted by AEO
it's not a race.
It's just a guide.

the race is in the cartridge bearings.

are you sure you have the correct integrated headset for your frame?

there are only about 20 to choose from, and all are incompatible with each other.
everything was included with the frame. so i couldn't have messed up on getting the right parts.
plowmanjoe is offline  
Reply
Old 07-21-10 | 05:14 PM
  #11  
AEO's Avatar
AEO
Senior Member
 
Joined: Jun 2007
Posts: 12,257
Likes: 5
From: A Coffin Called Earth. or Toronto, ON

Bikes: Bianchi, Miyata, Dahon, Rossin

actually, I think that piece you're calling the crown race is for the upper section of the steerer tube. It's supposed to sit on top of the upper headset bearing with the cover over it.

the crown race looks more like a dish plate.

page 2
https://docs.google.com/viewer?a=v&q=...masILlbvHT9mAQ
__________________
Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
https://sanfrancisco.ibtimes.com/arti...ger-photos.htm
AEO is offline  
Reply
Old 07-21-10 | 05:16 PM
  #12  
Scrodzilla's Avatar
Your cog is slipping.
Titanium Club Membership
Sheldon Brown Memorial - Titanium
15 Anniversary
 
Joined: May 2009
Posts: 26,053
Likes: 100
From: Beverly MA

Bikes: EAI Bareknuckle

That's definitely not right. There shouldn't be a huge gap between your headset and fork. That looks more like the compression ring that sits above the top bearing. Can you take a pic of all the parts you have laid out on a table or something?

Last edited by Scrodzilla; 07-21-10 at 05:17 PM. Reason: AEO beat me to the punch
Scrodzilla is offline  
Reply
Old 07-21-10 | 05:18 PM
  #13  
grymg's Avatar
Senior Member
15 Anniversary
 
Joined: Oct 2008
Posts: 211
Likes: 0
From: Fremont, CA
^^Agree, I have the same frame. Best not to mess with this stuff. I took my fork and all of the headset parts to my LBS and they installed the crown race for $5. The tool to do it is pretty expensive for how many times you would use it.
grymg is offline  
Reply
Old 07-21-10 | 05:23 PM
  #14  
plowmanjoe's Avatar
Thread Starter
Senior Member
 
Joined: Oct 2009
Posts: 525
Likes: 17
From: NYC

Bikes: 09' Cinelli Vigorelli, 95' trek 950

plowmanjoe is offline  
Reply
Old 07-21-10 | 05:26 PM
  #15  
plowmanjoe's Avatar
Thread Starter
Senior Member
 
Joined: Oct 2009
Posts: 525
Likes: 17
From: NYC

Bikes: 09' Cinelli Vigorelli, 95' trek 950

Originally Posted by AEO
actually, I think that piece you're calling the crown race is for the upper section of the steerer tube. It's supposed to sit on top of the upper headset bearing with the cover over it.

the crown race looks more like a dish plate.

page 2
https://docs.google.com/viewer?a=v&q=...masILlbvHT9mAQ
you're right it looks like i have it wrong.

i have two of the parts mixed up.
plowmanjoe is offline  
Reply
Old 07-21-10 | 05:32 PM
  #16  
Scrodzilla's Avatar
Your cog is slipping.
Titanium Club Membership
Sheldon Brown Memorial - Titanium
15 Anniversary
 
Joined: May 2009
Posts: 26,053
Likes: 100
From: Beverly MA

Bikes: EAI Bareknuckle

Yes. The piece above what you originally thought to be the crown race is the right one. Throw it in the freezer for a while. The metal will expand slightly and you may be able to drop it right on your fork without much effort. Whatever you do, DO NOT force it on with a hammer and flathead screwdriver.
Scrodzilla is offline  
Reply
Old 07-21-10 | 05:38 PM
  #17  
plowmanjoe's Avatar
Thread Starter
Senior Member
 
Joined: Oct 2009
Posts: 525
Likes: 17
From: NYC

Bikes: 09' Cinelli Vigorelli, 95' trek 950

Originally Posted by Scrodzilla
Yes. The piece above what you originally thought to be the crown race is the right one. Throw it in the freezer for a while. The metal will expand slightly and you may be able to drop it right on your fork without much effort. Whatever you do, DO NOT force it on with a hammer and flathead screwdriver.
thanks. i will freeze it and see how it goes.

how about a hammer and a wrench? i have one that fits perfectly
Attached Images
File Type: jpg
7748_view..jpg (19.7 KB, 13 views)
plowmanjoe is offline  
Reply
Old 07-21-10 | 05:46 PM
  #18  
Scrodzilla's Avatar
Your cog is slipping.
Titanium Club Membership
Sheldon Brown Memorial - Titanium
15 Anniversary
 
Joined: May 2009
Posts: 26,053
Likes: 100
From: Beverly MA

Bikes: EAI Bareknuckle

I wouldn't even try that. The best thing to do if you don't have a crown race install tool is get a piece of PVC pipe that fits nicely over your steerer tube and gently tap it on.

https://www.bikeforums.net/bicycle-mechanics/27446-installing-fork-crown-race.html

either that or go to the LBS. They'll install it for a few bucks.
Scrodzilla is offline  
Reply
Old 07-21-10 | 06:09 PM
  #19  
mumblesmumbles's Avatar
just mumbling
 
Joined: Aug 2009
Posts: 83
Likes: 0
From: Alameda CA
Originally Posted by Scrodzilla
Throw it in the freezer for a while. The metal will expand slightly
Cold makes metal contract.

Heat expands.

Not to nitpick or anything.
mumblesmumbles is offline  
Reply
Old 07-21-10 | 06:12 PM
  #20  
Scrodzilla's Avatar
Your cog is slipping.
Titanium Club Membership
Sheldon Brown Memorial - Titanium
15 Anniversary
 
Joined: May 2009
Posts: 26,053
Likes: 100
From: Beverly MA

Bikes: EAI Bareknuckle

****, yeah...you're right. It's been too long a day. It's been a long time since I've had to install one without the proper tools but I should definitely know that metal shrinks when it's cold. I can see the poor dude now, taking his crown race from the freezer and cursing me out because it's smaller than it was before.

I need a nap. Boil that sucker.
Scrodzilla is offline  
Reply
Old 07-21-10 | 06:14 PM
  #21  
plowmanjoe's Avatar
Thread Starter
Senior Member
 
Joined: Oct 2009
Posts: 525
Likes: 17
From: NYC

Bikes: 09' Cinelli Vigorelli, 95' trek 950

next thing.

what's the best way to get the star nut in there?

i saw a video using a screw driver and a hammer.
plowmanjoe is offline  
Reply
Old 07-21-10 | 06:16 PM
  #22  
Scrodzilla's Avatar
Your cog is slipping.
Titanium Club Membership
Sheldon Brown Memorial - Titanium
15 Anniversary
 
Joined: May 2009
Posts: 26,053
Likes: 100
From: Beverly MA

Bikes: EAI Bareknuckle

I saw a video of a guy going to his local shop and having them do it.

I'm kidding. Did you get the race seated properly?
Scrodzilla is offline  
Reply
Old 07-21-10 | 06:19 PM
  #23  
AEO's Avatar
AEO
Senior Member
 
Joined: Jun 2007
Posts: 12,257
Likes: 5
From: A Coffin Called Earth. or Toronto, ON

Bikes: Bianchi, Miyata, Dahon, Rossin

using a starnut setter is the best method.
if you screw up and hammer it in on an angle, that means you'll have to buy a new starnut.
__________________
Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
https://sanfrancisco.ibtimes.com/arti...ger-photos.htm
AEO is offline  
Reply
Old 07-21-10 | 06:26 PM
  #24  
TejanoTrackie's Avatar
Veteran Racer
Titanium Club Membership
15 Anniversary
 
Joined: Jul 2009
Posts: 11,854
Likes: 913
From: Ciudad de Vacas, Tejas

Bikes: 34 frames + 80 wheels

Originally Posted by plowmanjoe
next thing.

what's the best way to get the star nut in there?

i saw a video using a screw driver and a hammer.
If you do that you're likely to get it in crooked and mangle the threads, which are pretty soft. What I do is get a long screw with the same threads from the hardware store, thread it in fully, use the cap as a guide, and hammer the screw to drive the star nut into the steerer tube. Make sure you don't drive it in too far, or the bolt won't thread fully into it. When you go to cut the steerer tube, you first drive the star nut in further past to cut point.
__________________
What, Me Worry? - Alfred E. Neuman

Originally Posted by Dcv
I'd like to think i have as much money as brains.
I see the light at the end of the tunnel, but the tunnel keeps getting longer - me
TejanoTrackie is offline  
Reply
Old 07-21-10 | 06:27 PM
  #25  
plowmanjoe's Avatar
Thread Starter
Senior Member
 
Joined: Oct 2009
Posts: 525
Likes: 17
From: NYC

Bikes: 09' Cinelli Vigorelli, 95' trek 950

all set, just went for it and it all worked out.

just waiting on a few more parts to arrive and it'll be complete.
plowmanjoe is offline  
Reply


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.