Bike Forums

Bike Forums (https://www.bikeforums.net/forum.php)
-   Bicycle Mechanics (https://www.bikeforums.net/bicycle-mechanics/)
-   -   Threads showing on new BB, is this a problem? (https://www.bikeforums.net/bicycle-mechanics/105411-threads-showing-new-bb-problem.html)

socalrider 05-08-05 06:18 AM

Threads showing on new BB, is this a problem?
 
Just had a new FSA Isis Bottom Bracket and compact crankset installed..

As I look down I see about 1 1/2 threads showing on the non-drive side.. It doesn't appear to be coming undone but it is not flush like the drive side.. I have put about 50 miles on it so far..

Is this something that I should be concerned about, it is an Italian BB which are known for coming undone?

sydney 05-08-05 07:25 AM


Originally Posted by socalrider
Just had a new FSA Isis Bottom Bracket and compact crankset installed..

As I look down I see about 1 1/2 threads showing on the non-drive side.. It doesn't appear to be coming undone but it is not flush like the drive side.. I have put about 50 miles on it so far..

Is this something that I should be concerned about, it is an Italian BB which are known for coming undone?

The drive side needs to be flush. The drive side needs to be properly tightened not to come undone. The non drive side snugs up against the end of the cartridge.It may or may not be flush.

socalrider 05-08-05 07:37 AM

The drive side is flush.. The threads showing are on the non-drive side..

sydney 05-08-05 07:45 AM


Originally Posted by socalrider
The drive side is flush.. The threads showing are on the non-drive side..

Like I said................

phantomcow2 05-08-05 08:06 AM

THe non drive side does not necessarily need to be flush. BUt do check just in case, mine was not flush and i thought it was okay until one day i decided "hmm maybe i will tighten this a bit to check it out" and guess what, it went in quite a bit more.

KleinMp99 05-08-05 11:30 AM


Originally Posted by sydney
Like I said................



Attitude? :rolleyes:

operator 05-08-05 01:46 PM

Sydneys gonna blow...!

phantomcow2 05-08-05 02:31 PM

Bar fight


All times are GMT -6. The time now is 09:59 AM.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.