Bike Forums - View Single Post - Internal BB cups extending outside of shell?

11-28-18 | 10:40 PM

#1

tbessie

Senior Member

Joined: Jun 2007

Posts: 71

Likes: 1

From: San Francisco, CA

Bikes: Custom Ti Firefly Road Bike w/Campy Chorus; Custom Ti Steve Potts Touring Bike w/Shimano XT; Custom Steel Steve Rex lugged frame for everyday w/90's era Campy Veloce; Jamis Quest when Steve Rex is in the shop.

Internal BB cups extending outside of shell?

Hey there folks...

I recently had my old city bike (Bianchi Eros on a Brava frame, Campy parts) overhauled at the local bike shop. I picked it up tonight.

Something I noticed that I never noticed on a bike before - the bottom bracket cup-threads extend out about 4mm or so on the non-drive side (and possibly a bit on the drive-side). This doesn't look right to me. Is this SUPPOSED to be this way? I'd always thought that the BB cups on an internal BB should be flush with the shell.

I'll be calling the shop tomorrow, but thought you experts might be able to shed some light on this.

See attached photos - tell me if this looks normal to you.

This is a Phil Wood BB.

- Tim

Drive side

Non-drive side

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