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


Bottom bracket compatability
#1
Looking at new frames and they all have either BSA or BB68 spec'd for the bottom brackets. Which of these would accomodate an old Shimano UN73 sealed bb unit with English threads? Can't afford new components and a new frame. Thanks.
  Reply
#2
English threads narrows it down to BSA/ISO - but not say if your UN73 is for 68 or 73 millimeter wide bottom bracket shells.
Nigel
  Reply
#3
(05-03-2014, 05:20 PM)nfmisso Wrote:  English threads narrows it down to BSA/ISO - but not say if your UN73 is for 68 or 73 millimeter wide bottom bracket shells.

Present frame is 73mm wide
  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
Post-Ride Nutrition
Today 02:06 AM
🚴‍♂️ Saddle Up for the Belgian Waffle Ri...
Today 02:03 AM
Pre Ride Food Intake
Today 12:14 AM
SAVA Explorer 6061?
Yesterday 03:31 PM
braking by reversing the pedals
Yesterday 01:00 PM
Zwift v Spin v Wahoo
04-01-2025 05:59 PM
Have you Ever Tried an Electric Bike?
04-01-2025 05:07 PM
Good Morning from SW Ohio
04-01-2025 07:32 AM
(So California) PV Dr to be closed to bi...
03-31-2025 09:14 PM
Tubeless vs. tubes: What are the pros an...
03-31-2025 08:28 AM

[-]
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. GirishH
22 posts
no avatar 2. Flowrider
19 posts
no avatar 3. meamoantonio
12 posts
no avatar 4. Jake1
11 posts
no avatar 5. enkei
9 posts