Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Replacement SRAM GXP Blackbox Ceramic BB

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.

Replacement SRAM GXP Blackbox Ceramic BB

Old 06-25-11, 02:02 PM
Senior Member
Thread Starter
Groundhog1248's Avatar
Join Date: Sep 2005
Location: PA
Posts: 82

Bikes: Fuji SL1, GT Team Carbon, Mrazek BOH FX Mountain bike and Giant TCR1

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Replacement SRAM GXP Blackbox Ceramic BB

I need to replace my SRAM GXP bottom bracket but can't find if it's a 68 or 70mm? What exactly are those numbers and is it a big deal? I'm thinking it's most likely a 68mm since that seems to be the most common. The only other numbers I see are a 47-08 and a 40-..... Don't see any 68 or 70mm
Groundhog1248 is offline  
Old 06-25-11, 02:45 PM
Senior Member
Join Date: Oct 2007
Location: West Yorkshire, United Kingdom
Posts: 5,772
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 452 Post(s)
Liked 103 Times in 86 Posts
They only come in English or Italian thread, choose the thread type you have, length is standard for road External BB's on modern bikes (68mm)
jimc101 is offline  
Related Topics
Thread Starter
Last Post
Bicycle Mechanics
03-26-23 06:52 AM
Bicycle Mechanics
12-22-15 03:45 PM
Classic & Vintage
06-09-15 09:55 AM
Bicycle Mechanics
05-26-13 01:45 AM
Road Cycling
06-20-11 12:58 PM

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

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.