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 04-14-12, 07:01 PM   #1
B.Sherer
Member
Thread Starter
 
Join Date: Mar 2012
Location: Richmond, IN
Bikes: Trek 7.2 FX
Posts: 39
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
1987 Cannondale Bottom Bracket Help

Hello all, I recently picked up an old Cannondale and have been acquiring tools to take care of her. I'm trying to take apart the bottom bracket right now but am puzzled by what to do next. It looks like I might need some tool to fit in the circular holes.. am I on the right track? Any help would be greatly appreciated.

Here is the picture of what I'm facing:
bike.jpg
B.Sherer is offline   Reply With Quote
Old 04-14-12, 07:44 PM   #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: 28,776
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 36 Post(s)
The top photo is the "non-drive side" adjustable cup. Apparently you've removed the lockring and the holes in the cup use a pin spanner to remove it. You can improvise with a thin punch and hammer or even needle nose pliers. The cup has regular right-hand threading and comes out counterclockwise.

The lower photo is the "fixed cup" and requires a special wrench to remove or you can clamp the flats in a bench vise and use the frame as a lever. These cups are usually VERY tight and are left-hand threaded so they remove clockwise.

If you are just going to clean, relube and reassemble this bottom bracket and the cups are in good shape, it's not necessary to remove the fixed cup. If you are going to replace it entirely, then both cups must come out.
HillRider is offline   Reply With Quote
Old 04-14-12, 07:52 PM   #3
B.Sherer
Member
Thread Starter
 
Join Date: Mar 2012
Location: Richmond, IN
Bikes: Trek 7.2 FX
Posts: 39
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thank you very much for the information HillRider! I knew I could count on someone from here.
B.Sherer is offline   Reply With Quote
Old 04-14-12, 07:56 PM   #4
Jeff Wills
Insane Bicycle Mechanic
 
Jeff Wills's Avatar
 
Join Date: Mar 2008
Location: other Vancouver
Bikes:
Posts: 7,907
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
This: http://www.parktool.com/blog/repair-...racket-service
and this: http://www.parktool.com/product/cran...t-wrench-HCW-5
and this: http://www.parktool.com/product/pin-spanner-green-SPA-1
or this: http://www.parktool.com/product/cran...t-wrench-hcw-4

are all you need.

__________________
Jeff Wills

Comcast nuked my web page. It will return soon..
Jeff Wills is offline   Reply With Quote
Old 04-14-12, 08:11 PM   #5
FastJake
Constant tinkerer
 
FastJake's Avatar
 
Join Date: May 2010
Location: Madison, Wisconsin
Bikes:
Posts: 7,574
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Once you remove the lockring, usually no tool is needed to remove the adjustable cup (the one with the holes in it.)

+1 If you are just cleaning and re-lubing do NOT remove the fixed cup. There is no reason to, they are difficult to remove, and will unscrew if not properly re-tightened.
FastJake 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 10:30 AM.