Bike Forums - View Single Post - BB Fixed Cup Removal

04-06-10 | 07:52 PM

#8

robtown

Muscle bike design spec

Joined: Oct 2004

Posts: 3,688

Likes: 3

From: Sterling VA

Bikes: 70 Atala Record Proffesional, 00 Lemond, 08 Kestrel Evoke, 96 Colnago Master Olympic, 01 Colnago Ovalmaster, 76 Raleigh Gran Sport, 03 Fuji World, 86 Paramount, 90 Miyata CF, 09 Ritchey Breakaway CX, Bianchi Trofeo, 12 OutRiderUSA HyperLite

Quote:

Originally Posted by StinkyPete

Sheldon Brown has instructions for building a DIY fixed cup removal tool:

http://www.sheldonbrown.com/tooltips/bbcups.html

I built a tool to his specifications (about $5 in parts at the hardware store), and it allowed me to exert lots more force than an adjustable wrench or even a bench vise. That said, I still wasn't able to remove the cup and was forced to let my LBS do the job for me.

I tried to do the same in the past and failed. It's very inconvenient and expensive to go to the LBS. The other mechanic (defunct LBS) is a nice guy and economical - but hard to pin down.

Quote:

Originally Posted by Torchy McFlux

I've had a J.A.Stein fixed cup wrench clamp for years. I love that thing.

I've emailed directly to purchase the tool. I'm also buying a closed end BB cup wrench to replace the piece of junk I own.

Quote:

Originally Posted by SBinNYC

Just to repeat the obvious. If the markings on the Campy fixed cup are 1.370 x 24 tpi or 35 x 1G then it is a left handed thread and turning it clockwise (from the driving side) should loosen it. If the markings are 35 x 1 or 36 x 24F then it is a right handed thread and turning it counter clockwise (from the driving side) should loosen it.

Thanks - its 1.37 x 24

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