Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take part in the October Giveaway for the Haven Bicycle Co. beach cruiser


Time for new BB bearings?
#1
I have an integrated bottom bracket (FSA with MegaExo), and it has developed some play in the direction of the spindle. Everything else feels solid...no grittiness when I turn the crank...doesn't rock...just has slight play in the one direction. Is it time for new bottom bracket bearings?
  Reply
#2
is there any preload adjustment?

well made sealed bearings will out last all of us, if they are properly supported and preloaded.
Nigel
  Reply
#3
So I found out what the problem is. According to the guys at my LBS, there is a known problem with FSA cranksets that were made about 5-6 years ago (ironically about the same time mine was made!), where the single bolt that holds the non-drive-side crank arm onto the spindle is slightly too long and it bottoms out before it achieves proper pre-load. The bolt will feel tight, but will start to loosen ever so slightly, allowing the crank to slightly shift along the axis of the spindle. FSA actually sent out a bolt to whomever registered their cranks to fix this problem.

Additionally, when they took mine apart today, they commented that the bearings in the bottom bracket cup had forced themselves onto the taper of the spindle, and are basically press-fitted onto the crank itself, so they are removed from the bottom bracket cups whenever the crank is removed. I had noticed this the few times I took my crank apart, but thought that's how FSA's are designed, so didn't think anything of it.

Anyway, they had an Ultegra crank that didn't have any chainrings on it sitting around because a prior customer didn't want it, so they sold me that, new bottom bracket cups, and transferred my existing chainrings onto it, so I'm back on the road Big Grin
  Reply
#4
Because of the problems I have heard with FSA I really am not a big fan anyways Sad. Thanks for sharing that. Smile
Good maintenance to your Bike, can make it like the wheels are, true and smooth!
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
399
08-30-2021, 03:46 AM
Last Post: Poissonj1
 
13,957
05-26-2015, 02:31 PM
Last Post: eric1023
 
27,251
01-13-2015, 12:13 PM
Last Post: joseph wolf man
 
12,045
11-06-2014, 08:59 AM
Last Post: JanJ
 
5,520
10-20-2014, 04:52 PM
Last Post: DaveM
 
5,460
12-25-2013, 07:11 AM
Last Post: SchwinnMonkey
 
5,119
01-13-2012, 10:06 AM
Last Post: Bill

Forum Jump:

[-]
10 Latest Posts
Bike evaluation
Today 02:06 AM
V Brakes just won’t adjust properly
Today 12:19 AM
[Sponsored] Souke Sports Cycling Apparel...
Yesterday 09:17 PM
What was your first bicycle?
Yesterday 10:35 AM
Chain skips under heavy load when pedall...
Yesterday 06:03 AM
VINTAGE DERAILLEURS: Campagnolo 50s-80s
Yesterday 12:52 AM
What's your No.1 concern when you purcha...
10-14-2021 11:24 PM
Is this frame dent a concern?
10-13-2021 04:50 PM
Looking for Cycling Apparel Testers - So...
10-12-2021 10:10 PM
Cycling Training Programs
10-12-2021 04:54 PM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. Souke Sports
23 posts
no avatar 2. Criminal
15 posts
no avatar 3. ReapThaWhirlwind
13 posts
no avatar 4. Jesper
8 posts
no avatar 5. Zviedrs
7 posts