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

BB30 query - which creaks less?

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.

BB30 query - which creaks less?

Old 01-15-19, 03:42 PM
  #1  
masi61
Senior Member
Thread Starter
 
masi61's Avatar
 
Join Date: Oct 2005
Location: SW Ohio
Posts: 1,944

Bikes: Puch Marco Polo, Saint Tropez, Masi Gran Criterium

Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 346 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
BB30 query - which creaks less?

iím Building up an NOS Cannondale CAAD9 BB30 frameset and would like to run 24mm cranks preferably.

or, not... I started looking at BB30 Cannondale Hollowgram cranks with the 30mm spindle and they appear very well built.

I want to install a bottom bracket that is not going to creak. I was wondering if it matters if you run the 30mm axle cranks or if 24 mm cranks are OK and noise free as well?

Thanks for any insights you could provide to the conversation....
masi61 is offline  
Old 01-15-19, 04:04 PM
  #2  
wsteve464
Senior Member
 
Join Date: Jul 2016
Posts: 232
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 67 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I think these guys have a thread together bottom bracket for your Cannondale. I have installed one on my bike with a pressfit bb and so far no noises.

https://wheelsmfg.com/bottom-brackets.html
wsteve464 is offline  
Old 01-15-19, 05:08 PM
  #3  
DrIsotope 
Non omnino gravis
 
DrIsotope's Avatar
 
Join Date: Feb 2015
Location: SoCal, USA!
Posts: 6,224

Bikes: Nekobasu, Pandicorn

Mentioned: 88 Post(s)
Tagged: 0 Thread(s)
Quoted: 3302 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Just put a Wheels Mfg. threaded bracket in my Cervelo, replacing the factory Rotor PF30. Strongly recommend. Once that threaded housing is in, you're set. You can just replace the bearings, which are as little as 3 bucks each.

I don't think spindle size will have any impact on the potential for creaking-- just with a 24mm hole instead of a 30mm hole, the bearings will (maybe?) last longer.
__________________
DrIsotope is offline  
Old 01-15-19, 05:25 PM
  #4  
caloso
Packfodding 3
 
caloso's Avatar
 
Join Date: Jul 2002
Location: Sacramento, California, USA
Posts: 37,725

Bikes: Ridley Excalibur, Gazelle Champion Mondial, On-One Pompino, Specialized Rock Hopper

Mentioned: 53 Post(s)
Tagged: 0 Thread(s)
Quoted: 1701 Post(s)
Likes: 0
Liked 3 Times in 3 Posts
I went with a Praxis BB for my Specialized. Dead silent perfect.
caloso is offline  
Old 01-15-19, 05:42 PM
  #5  
TimothyH
- Soli Deo Gloria -
 
TimothyH's Avatar
 
Join Date: Aug 2015
Location: Northwest Georgia
Posts: 13,210

Bikes: 2018 Rodriguez Custom Fixed Gear, 2017 Niner RLT 9 RDO, 2015 Bianchi Pista, 2002 Fuji Robaix

Mentioned: 201 Post(s)
Tagged: 0 Thread(s)
Quoted: 5894 Post(s)
Liked 9 Times in 7 Posts
Praxis Conversion and Enduro Torqtite both eliminate pressing and will not creak.
TimothyH is offline  
Old 01-16-19, 12:38 AM
  #6  
Kimmo
bike whisperer
 
Kimmo's Avatar
 
Join Date: Dec 2009
Location: Melbourne, Oz
Posts: 7,818

Bikes: https://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=152015&p=1404231

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 330 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I'm of the mind that if your frame has a BB30 shell, make the most of it with a BB30 crank. Lighter, stiffer, and the main thing is, heel clearance that's been missing since external bearings became a thing.
Kimmo is offline  
Old 01-16-19, 07:17 PM
  #7  
02Giant 
Home School Valedictorian
 
02Giant's Avatar
 
Join Date: Jan 2011
Location: Iowa
Posts: 2,630

Bikes: 13 Orbea Orca 02 Giant Cypress 88 Mongoose ATB

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 732 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Run the BB30 crank.
__________________
Excuse me if I, have some place in my mind,
Where I go time to time
02Giant is offline  
Old 01-16-19, 07:53 PM
  #8  
e_guevara
Senior Member
 
Join Date: Oct 2004
Posts: 699

Bikes: Cannondale CAAD10 Team, Giant TCR

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I second using a BB30 crank. Be careful when installing the bearings though. Imperfections on the BB shell and/or the bearings not sitting squarely due to imroper installation can cause the crank to creak especially under power (hard efforts). It is recommended to use a retaining compound like Loctite 672 to prevent movement.
e_guevara is offline  
Old 01-16-19, 10:39 PM
  #9  
sch
Senior Member
 
Join Date: May 2003
Location: Mountain Brook. AL
Posts: 3,512
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 172 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
FWIW I recently installed an FSA Megaevo 30mm spindle/BB and unlike the 24mm I was accustomed to which is slip fit in the bearings,
ie the spindle just slides easily through the bearings, I found the 30mm spindle was a force fit. Looking on various sites I came across the
suggestion to put the spindle/crank in the freezer for 30-60 minutes and it will slide in easily (called shrink-fit by the bearing people). It
worked a treat. Based on the tighter fit I would predict a bit less likelihood of creak with the 30 over the 24. YMMV

Of course eventual removal of the 30mm will require some persuasion.
sch is offline  
Old 01-16-19, 11:02 PM
  #10  
e_guevara
Senior Member
 
Join Date: Oct 2004
Posts: 699

Bikes: Cannondale CAAD10 Team, Giant TCR

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by sch View Post
... I found the 30mm spindle was a force fit. [...] Based on the tighter fit I would predict a bit less likelihood of creak with the 30 over the 24.
The creaking is caused by the bearings' outer race moving against the inside face of the BB shell which it is not supposed to do.
e_guevara is offline  
Old 01-17-19, 12:28 PM
  #11  
caloso
Packfodding 3
 
caloso's Avatar
 
Join Date: Jul 2002
Location: Sacramento, California, USA
Posts: 37,725

Bikes: Ridley Excalibur, Gazelle Champion Mondial, On-One Pompino, Specialized Rock Hopper

Mentioned: 53 Post(s)
Tagged: 0 Thread(s)
Quoted: 1701 Post(s)
Likes: 0
Liked 3 Times in 3 Posts
Originally Posted by caloso View Post
I went with a Praxis BB for my Specialized. Dead silent perfect.
I should add that my Specialized came with a perfectly fine FSA BB30 crankset, but I wanted to use my Quarq which is built on a SRAM crankset with a 24/22mm spindle. If you don't have a compelling reason to put a 24 or 22mm crankset, it probably makes more sense to keep the BB330 crankset.
caloso is offline  
Old 03-18-19, 10:20 AM
  #12  
jimincalif
Senior Member
 
Join Date: Apr 2014
Location: Lake Forest, CA
Posts: 1,918

Bikes: '96 Trek 850, '08 Specialized Roubaix Comp, '18 Niner RLT RDO

Mentioned: 49 Post(s)
Tagged: 0 Thread(s)
Quoted: 448 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by DrIsotope View Post
Just put a Wheels Mfg. threaded bracket in my Cervelo, replacing the factory Rotor PF30. Strongly recommend. Once that threaded housing is in, you're set. You can just replace the bearings, which are as little as 3 bucks each.

I don't think spindle size will have any impact on the potential for creaking-- just with a 24mm hole instead of a 30mm hole, the bearings will (maybe?) last longer.
Hey Doc, I have a Wheels Mfg BB in my Niner, last few weeks I've been getting some creaking. Pulled out the crankset last night and found the external nuts were pretty loose, the whole assembly easily spun in the frame. So I tightened it up, probably a good 1/2 turn. How tight should these be installed? I didn't see any torque specs on their website. I will give it a test ride tomorrow morning to see if it is quiet again. I've had the bike 13 months, maybe 3,000 miles, never touched it before and have no idea how tight the LBS set it when they assembled the bike. Bearings seem brand new, no play & smooth.
jimincalif is offline  
Old 03-18-19, 12:23 PM
  #13  
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Posts: 40,338

Bikes: 8

Mentioned: 179 Post(s)
Tagged: 0 Thread(s)
Quoted: 6363 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Like Loc Tite for bolts there is sealed bearing seating compounds.. to apply during assembly..


seek out a sealed bearing with a 24mm ID and what ever your frame is for the OD

I assume you have a taste for press fit frames...

Industrial Standard number codes; the bearings have ID, OD and thickness dimensions..






...

Last edited by fietsbob; 03-18-19 at 12:29 PM.
fietsbob is offline  
Old 03-18-19, 01:52 PM
  #14  
DrIsotope 
Non omnino gravis
 
DrIsotope's Avatar
 
Join Date: Feb 2015
Location: SoCal, USA!
Posts: 6,224

Bikes: Nekobasu, Pandicorn

Mentioned: 88 Post(s)
Tagged: 0 Thread(s)
Quoted: 3302 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Install manual says 35nm-50nm, which is a helluva range. I went for 45nm on the wrench. So far so good.
DrIsotope is offline  
Old 03-18-19, 04:29 PM
  #15  
jimincalif
Senior Member
 
Join Date: Apr 2014
Location: Lake Forest, CA
Posts: 1,918

Bikes: '96 Trek 850, '08 Specialized Roubaix Comp, '18 Niner RLT RDO

Mentioned: 49 Post(s)
Tagged: 0 Thread(s)
Quoted: 448 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by DrIsotope View Post
Install manual says 35nm-50nm, which is a helluva range. I went for 45nm on the wrench. So far so good.
Indeed. I don't have a torque wrench for stuff at this level (yet), but good to know there's no chance I overdid it! Thanks.
jimincalif is offline  
Old 03-18-19, 06:28 PM
  #16  
DrIsotope 
Non omnino gravis
 
DrIsotope's Avatar
 
Join Date: Feb 2015
Location: SoCal, USA!
Posts: 6,224

Bikes: Nekobasu, Pandicorn

Mentioned: 88 Post(s)
Tagged: 0 Thread(s)
Quoted: 3302 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Related-unrelated, I just regreased the English-threaded FSA BB6000 on my Ritchey and the stamped torque spec is 45nm. Torque for the FSA Gossamer crank arm, a bizarre 41nm.
__________________
DrIsotope is offline  
Old 03-19-19, 11:07 AM
  #17  
jimincalif
Senior Member
 
Join Date: Apr 2014
Location: Lake Forest, CA
Posts: 1,918

Bikes: '96 Trek 850, '08 Specialized Roubaix Comp, '18 Niner RLT RDO

Mentioned: 49 Post(s)
Tagged: 0 Thread(s)
Quoted: 448 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I just got back from a ride, my Niner with the Wheels Mfg BB is SILENT again. Oh happy day!
jimincalif is offline  

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

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.