HOT: Active* forum members generally gain 5% discount at starbike.com store!
Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Articles FAQ Contact About




Post new topic Reply to topic  [ 5 posts ] 
Author Message
PostPosted: Sat Mar 02, 2013 11:10 pm 
Offline

Joined: Mon Sep 25, 2006 1:16 pm
Posts: 69
I already have the Vumaquad and am looking at replacing it with the THM M3. No need to buy a new bottom bracket? (Shell is standard BSA 68mm).


Top
 Profile  
 
PostPosted: Sun Mar 03, 2013 4:18 am 
Offline

Joined: Mon Sep 07, 2009 3:10 am
Posts: 349
They should be the same.


Top
 Profile  
 
Posted: Sun Mar 03, 2013 4:18 am 


Top
  
 
PostPosted: Sun Mar 03, 2013 5:44 am 
Offline

Joined: Wed Apr 08, 2009 5:23 am
Posts: 249
Location: Covington, WA
Alot of BSA BBs these days fit the 30mm axle. The only issue seems to be the thickness of the cups & precise bearing location within the cups, each of which can affect the chainline. The width of the manufacturer's bearing might also make a difference, although most seem to use the 7mm wide bearing.

THM makes both mtb & road cups for the M3, and using a mtb cup on a road frame will reset the chainline. Not sure of you have access to both brands to check the thickness. Final analysis is simply an actual measurement of the chainline I suppose.


Top
 Profile  
 
PostPosted: Sun Mar 03, 2013 9:02 am 
Offline

Joined: Wed Feb 09, 2005 4:51 am
Posts: 1626
They are probably NOT the same if the M3 uses the same BB's as the Clavicula.

The Clavicula BB is offset to one side, in that one side being thicker than the other. But as far as I know the Vumaquad isn't. So unless the Vamaquad BB is as slim as the slimmer side of the Clavicula ( assuming same BB used to in the M3), you won't be able to use them.


Top
 Profile  
 
PostPosted: Sun Mar 03, 2013 1:10 pm 
Offline

Joined: Sat Apr 22, 2006 12:38 am
Posts: 1680
Location: Dutchess County, NY
I know the vumaquad and lightning cranks can share BB's (personal experience), but I've never heard of THM working the same way.

_________________
Speedplay is the devil.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 


Who is online

Users browsing this forum: 8oken, Google Adsense [Bot], sanrensho, Valy and 63 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:  

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Bottom Bracket - Crankset Conversion / Compatibility ?

in Road

therouler

2

323

Sat Jan 04, 2014 8:43 am

arcatern View the latest post

There are no new unread posts for this topic. Zipp vumaquad 46 chainring

in Road

CeCa

2

303

Sun Apr 21, 2013 4:22 pm

CeCa View the latest post

There are no new unread posts for this topic. Searching Zipp Vumaquad 52T chainring ! PLEASE HELP !

in Road

CeCa

0

114

Thu Jan 16, 2014 10:16 pm

CeCa View the latest post

There are no new unread posts for this topic. Which PF 30 bottom bracket

in Road

mattlawro

4

416

Tue Apr 15, 2014 11:26 pm

blantonator View the latest post

There are no new unread posts for this topic. Bottom bracket for Pinarello frame

in Road

pdenes

1

444

Sat Jun 08, 2013 9:48 pm

cerro View the latest post


It is currently Fri Apr 18, 2014 11:13 pm

All times are UTC + 1 hour




Advertising   –  FAQ   –  Contact   –  Convert   –  About

© Weight Weenies 2000-2013
hosted by starbike.com


How to get rid of these ads? Just register!


Powered by phpBB