Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About Impressum
It is currently Wed Aug 23, 2017 9:24 am

All times are UTC+01:00





Post new topic  Reply to topic  [ 31 posts ]  Go to page 1 2 3 Next
Author Message
PostPosted: Sun Jul 27, 2014 1:28 pm 
Offline

Joined: Tue Apr 05, 2011 6:57 pm
Posts: 59
Location: Chicago
Someone just announced bearings that would allow a BB30 crank to be used in a non BB30 frame. I can't seem to find the link or remember who it was.


Top
   
Posted: Sun Jul 27, 2014 1:28 pm 


Top
   
 
PostPosted: Sun Jul 27, 2014 1:35 pm 
Offline

Joined: Fri Dec 06, 2013 9:08 am
Posts: 342
Location: Slovakia
Rotor offer their solution - BSA30


Top
   
PostPosted: Sun Jul 27, 2014 2:44 pm 
Offline

Joined: Fri Jan 27, 2006 1:38 pm
Posts: 725
Location: Greater Pittsburgh
I just installed a BB30 Quarq in a standard BSA threaded frame by using a Zipp Vuma bottom bracket. Works like a charm!

_________________
"Suddenly the thought struck me; my floor is someone elses ceiling" - Nils Ferlin


Top
   
PostPosted: Sun Jul 27, 2014 3:31 pm 
Offline

Joined: Tue Nov 11, 2003 9:47 pm
Posts: 2196
Location: Santa Cruz, California, USA
A number of companies make "BSA30" BBs with 30mm ID bearings in BSA cups.
But you need a crank with an extra long 30mm spindle. True BB30 crank spindles are too short.
Sram Quarq and Rotor are extra long 30mm spindle cranks.


Top
   
PostPosted: Mon Jul 28, 2014 2:20 pm 
Offline

Joined: Mon Jan 24, 2011 8:09 pm
Posts: 921
Wheelsmfg. I don't think they have it up on their site yet. It was posted in another thread on here last week..look around.

Edit, think it was this thread: viewtopic.php?f=3&t=98394&start=45


Top
   
PostPosted: Mon Jul 28, 2014 7:10 pm 
Offline

Joined: Tue Nov 11, 2003 9:47 pm
Posts: 2196
Location: Santa Cruz, California, USA
The wheels mfg adaptors referenced in that thread are to run 24mm spindle cranks in a BB30 frame, not BB30 cranks in a BSA frame which is what this thread is about.
They look really nice though, especially the one with angular contact bearings.


Top
   
PostPosted: Mon Jul 28, 2014 8:20 pm 
Offline
User avatar

Joined: Fri Jul 23, 2004 8:24 pm
Posts: 2116
Location: Houston, Texas
JimV wrote:
Someone just announced bearings that would allow a BB30 crank to be used in a non BB30 frame. I can't seem to find the link or remember who it was.
Which bottom bracket standard as these days, 'non bb30' frames could include BSA, PF86, PF90, PF92, or BBRight, and of those, realistically only frame with a BSA bottom bracket would be able to work with a BB30 crank.

_________________
Michael - The Anaerobic Threshold is neither...


Top
   
PostPosted: Mon Jul 28, 2014 8:35 pm 
Offline

Joined: Wed Mar 05, 2014 9:20 pm
Posts: 95
hmmmm,

this has got me thinking....

with those BSA30 cups I wonder if its possible to thin the bottom bracket down enough to fit the short BB30 BB30....


Top
   
PostPosted: Mon Jul 28, 2014 10:19 pm 
Offline

Joined: Fri Oct 28, 2011 3:25 am
Posts: 1441
Location: United Kingdom of Great Britain and Northern Ireland
joec wrote:
hmmmm,

this has got me thinking....

with those BSA30 cups I wonder if its possible to thin the bottom bracket down enough to fit the short BB30 BB30....


Why not have a go with a file and a couple of chisels?


Top
   
PostPosted: Mon Jul 28, 2014 11:17 pm 
Offline

Joined: Sun Jan 01, 2012 9:58 am
Posts: 473
eric wrote:
A number of companies make "BSA30" BBs with 30mm ID bearings in BSA cups.
But you need a crank with an extra long 30mm spindle. True BB30 crank spindles are too short.
Sram Quarq and Rotor are extra long 30mm spindle cranks.


this is the important detail. the "bb30" cranks that fit in BSA frames are not true bb30 cranks - they are bb30 compatible through the use of longer spindles, spacers, etc. a true bb30 crankset cannot be made to fit in a bsa frame with existing parts. to do it on a custom basis would require some pretty tiny bearings that would probably have a similarly tiny life-span.


Top
   
PostPosted: Tue Jul 29, 2014 2:26 pm 
Offline

Joined: Thu Dec 09, 2004 5:51 pm
Posts: 185
Enduro is coming out with a set of 2 bearing per side to allow 30mm cranks to be used on Treks 90 mm wide shimano BB. I'm guessing very small bearings and the 2 races per side to help distribute the load. I believe it was on bike rumor a couple of weeks ago.


Top
   
PostPosted: Tue Jul 29, 2014 2:35 pm 
Offline

Joined: Tue Sep 11, 2012 6:07 pm
Posts: 1251
Location: The Lone Star State
I just did a search on Google (and on BikeRumor) and haven't been able to find an article with that information. Can you provide a link?

_________________
Madone 9 https://goo.gl/7UwZpV

Crockett https://goo.gl/f5PdCN

Madone 5 https://goo.gl/cMdyFo

Madone 4, SpeedConcept, Cobia

I own a lot of Treks.


Top
   
PostPosted: Tue Jul 29, 2014 7:10 pm 
Offline

Joined: Thu Nov 10, 2005 5:31 pm
Posts: 3838
I could have sworn that I have seen a set of Hollowgram SL cranks on a BSA bottom bracket bike with Zipp style bearings at some point. Someone I am sure did this conversion but they have to machine the lip off of the axel.

_________________
BIG DADDY B FLOW
AERO & LIGHT is RIGHT

Cervelo SLC 5960g/13.13 lbs


Top
   
PostPosted: Tue Jul 29, 2014 8:34 pm 
Offline
User avatar

Joined: Fri Jul 23, 2004 8:24 pm
Posts: 2116
Location: Houston, Texas
BmanX wrote:
I could have sworn that I have seen a set of Hollowgram SL cranks on a BSA bottom bracket bike with Zipp style bearings at some point.
I think that was a one off, completely custom proof of concept Fairwheel bike or similar did several years back. Regardless of spindle length, isn't the bottom bracket shell for an English threaded BSA frameset ~68mm? As is always the case with a true BB30 crank, adding threaded bearing cups to that frame will result in the chainrings being pushed out the equivalent of the width of the bearing cup, thus altering the required chainline.

_________________
Michael - The Anaerobic Threshold is neither...


Top
   
Posted: Tue Jul 29, 2014 8:34 pm 


Top
   
 
PostPosted: Tue Jul 29, 2014 8:49 pm 
Offline

Joined: Thu Nov 10, 2005 5:31 pm
Posts: 3838
That is the one that I remember and I agree with your statement. I would like to see that article and their findings.

_________________
BIG DADDY B FLOW
AERO & LIGHT is RIGHT

Cervelo SLC 5960g/13.13 lbs


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 31 posts ]  Go to page 1 2 3 Next

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Think I got a frame with BBright installed, want to install Shimano crank [pic]

[ Go to page: 1 2 ]

in Road

Shrike

20

1397

Thu Oct 06, 2016 6:18 pm

Shrike View the latest post

There are no new unread posts for this topic. Rotor Crank Compatability to Wilier Cento 1SR BB386 Evo Frame

in Road

theironboy

4

562

Sun Jan 01, 2017 2:50 pm

1415chris View the latest post

There are no new unread posts for this topic. Crank Bearing Puller for SRM Campagnolo Crank

in Road

mrgray

14

800

Tue Apr 04, 2017 9:37 am

mrgray View the latest post

There are no new unread posts for this topic. Between frame sizes - : Going larger frame vs going smaller frame

[ Go to page: 1 2 ]

in Road

jeffy

16

1018

Sun Jul 09, 2017 11:03 pm

sooni View the latest post

There are no new unread posts for this topic. CAAD12 BB Conversion - GXP to BB30

in Road

alexneumuller

6

1140

Fri Oct 14, 2016 2:31 pm

havana View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: Baidu [Spider], crn, Google Adsense [Bot], JScycle, Kaboom, kgt, MayhemSWE, raven14, rheosibal, snowdevlin, Yahoo [Bot] and 46 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