Ultra torque specification

Discuss light weight issues concerning road bikes & parts.
Post Reply
Aignan
Posts: 5
Joined: Sun Dec 22, 2019 2:30 pm

by Aignan

Does anyone know the official distance between the inner side of bearings on an ultra torque chainset (potenza)??

bm0p700f
in the industry
Posts: 5329
Joined: Sat May 12, 2012 7:25 pm
Location: Glermsford, Suffolk U.K
Contact:

by bm0p700f

Why do you care. If the shell is the correct width then you dont need to know. If the shell is not the correct with then you need to make it the correct width.

by Weenie


Aignan
Posts: 5
Joined: Sun Dec 22, 2019 2:30 pm

by Aignan

I have a bbinfinity insert so the shell width is redundant

wingguy
Posts: 4321
Joined: Thu Mar 08, 2012 11:43 pm

by wingguy

What are you trying to achieve?

Aignan
Posts: 5
Joined: Sun Dec 22, 2019 2:30 pm

by Aignan

I had a bbInfinity PF30a fitted to a cannondale evo supersix. The mechanic ignored the installation instructions and didn't bother with the loctite. after 6 months the insert started to slide out. I took it back to the mechanic. He removed it and reinstalled. I now have around 2mm of side play, so I need to know whether the insert is ruined or the crankset. There is no adjustment on this system and forget wave washers etc, this would defeat the object of the insert.

bm0p700f
in the industry
Posts: 5329
Joined: Sat May 12, 2012 7:25 pm
Location: Glermsford, Suffolk U.K
Contact:

by bm0p700f

The crankset wont be ruined.

by Weenie


Aignan
Posts: 5
Joined: Sun Dec 22, 2019 2:30 pm

by Aignan

Thanks, I will install a new insert myself. Very happy with my BORG31s too

Post Reply