Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About Impressum
It is currently Tue Jan 17, 2017 6:42 am

All times are UTC+01:00





Post new topic  Reply to topic  [ 4 posts ] 
Author Message
 Post subject: Crank options for BB90?
PostPosted: Fri Apr 22, 2011 3:47 pm 
Offline

Joined: Wed Jun 27, 2007 12:18 am
Posts: 195
I have a friend with a Trek road bike, which uses BB90. The bike came with an Ultegra triple, but she really does not need the triple and would prefer a compact. What kind of crank do I have to buy that will work with the BB90 bearings already installed? Is there an Ultegra BB90 version?


Top
   
PostPosted: Fri Apr 22, 2011 4:12 pm 
Offline

Joined: Sun May 16, 2010 7:28 pm
Posts: 949
My understanding of BB90 is that they've effectively taken external bearings from outside of a standard threaded bottom bracket and made them internal. So any crank that would work with a standard threaded bottom bracket shell should also work with BB90. Where you get into trouble is that any crank with an oversized spindle (BB30 and some boutique brands) will not fit.
So to answer your question, yes, a standard ultegra compact double should fit just fine. As should cranksets from SRAM and campy.


Top
   
Posted: Fri Apr 22, 2011 4:12 pm 


Top
   
 
PostPosted: Fri Apr 22, 2011 5:45 pm 
Offline

Joined: Thu Dec 09, 2004 1:57 pm
Posts: 252
The bearings your friend currently has will only work with Shimano 10 (all Shimano 10) cranks or other 24mm spindle cranks (Rotor, etc.). While BB90 works with Campy and SRAM as well, you'd need the proper BB90 bearings for those cranks (BB90/SRAM, BB90/Campy). So if your friend wants to use the same bearings that are already installed, she would have to stick with Shimano 10 or Rotor, etc.


Top
   
PostPosted: Fri Apr 22, 2011 5:54 pm 
Offline

Joined: Mon Oct 12, 2009 6:36 pm
Posts: 246
Any Shimano crank will fit.


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 4 posts ] 

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Pinarello F8 Crank Options - BB30 Possible?

in Road

CTracer

6

973

Tue Mar 29, 2016 6:28 pm

CTracer View the latest post

There are no new unread posts for this topic. Standard chainring options for compact Cannondale SI crank

in Road

Kurets

0

230

Tue Aug 30, 2016 7:03 pm

Kurets View the latest post

There are no new unread posts for this topic. BB90 install tool

in Road

nemeseri

5

503

Mon Mar 28, 2016 5:13 pm

BikeAnon View the latest post

There are no new unread posts for this topic. GXP crankset ( Red) on a Trek frame ( BB90)

in Road

LouisN

5

752

Tue Jun 14, 2016 4:38 pm

LouisN View the latest post

There are no new unread posts for this topic. Trek BB90 and 30mm spindle cranks

[ Go to page: 1 2 ]

in Road

jdc5r

17

1067

Thu Dec 08, 2016 10:31 pm

grover View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: Baidu [Spider], Exabot [Bot], jimaizumi, Yahoo [Bot] and 34 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited