Bottom Bracket/Hollowtech II problem?
04-24-06, 12:08 AM
#1
Senior Member
Thread Starter
Join Date: Feb 2006
Posts: 97
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Bottom Bracket/Hollowtech II problem?
I have a new mtb frame and someone was asked what size the bb was. Bike has not been built so I measured the ID of bracket and it was apprx 33.75mm. So I decided to check the Shimano Hollowtech II bearings and I could not get cups to thread into bracket, on either side. Measured the OD of bearing cups and they seem to measure out to about 34.50mm. Could I be doing something wrong, threads look fine on frame, looks like mfr even faced the bracket. Bearing cups are also marked L and R and show direction of rotation to tighten. So I am sort of puzzled. I do plan to have a pro build up my bike as soon as I receive all the components. Thanks,
