Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

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.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 01-19-06, 08:57 AM   #1
daneil
Senior Member
Thread Starter
 
Join Date: Apr 2004
Location: Brooklyn, NY
Bikes:
Posts: 255
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Lower headset cup help

Ok, so without getting too far into my stupidity, I appear to have buggered the lower cup on my new 1" S2. A hammer blow got out of control and lightly struck the edge of the cup. The result is a 5mm long lip going into the cup (the lip itself is less then 1/2 mm, basically just enough to keep the cartridge bearing from going in). The question is: Am I right in assuming that the cup is now crap and I need to buy a new headset? Or, is this the kind of thing that can be Dremeled out?

Thanks for not judging.

-Dan
daneil is offline   Reply With Quote
Old 01-19-06, 09:01 AM   #2
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,921
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 96 Post(s)
I'd try to tap ther lip back into line with the small end of a ball-pein hammer using a soft piece of wood as a support. Dremmeling (a new verb!) it will thin the cup wall. Once the cartridge bearing fits, you should be OK.
HillRider is offline   Reply With Quote
Old 01-19-06, 09:09 AM   #3
daneil
Senior Member
Thread Starter
 
Join Date: Apr 2004
Location: Brooklyn, NY
Bikes:
Posts: 255
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
So as long as the bearing fits into the cup I'm ok? I don't need to worry about the inside of the cup wall being totally smooth?
daneil is offline   Reply With Quote
Old 01-19-06, 12:21 PM   #4
daneil
Senior Member
Thread Starter
 
Join Date: Apr 2004
Location: Brooklyn, NY
Bikes:
Posts: 255
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
A++ for Cane Creek. They pulled an uncommon replacement (1" Silver bottom cup) and sent it out to me just five min. ago. Can't beat that for customer service. They just found a customer for life.
daneil is offline   Reply With Quote
Old 01-19-06, 06:38 PM   #5
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,921
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 96 Post(s)
To answer you first question, no the inside of the cup doesn't have to be perfectly smooth for cartridge bearings. All the cup does is hold them in position. The moving elements and the races are contained in the cartridge so nothing actually rotates against the cup.

Your second item is obviously the best way to repair the damage. Get a replacement part free from the manufacturer. Cane Creek is to be commended.
HillRider is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -6. The time now is 10:12 AM.