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Ultra torque specification

Posted: Mon Dec 23, 2019 4:35 pm
by Aignan
Does anyone know the official distance between the inner side of bearings on an ultra torque chainset (potenza)??

Re: Ultra torque specification

Posted: Mon Dec 23, 2019 9:05 pm
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.

Re: Ultra torque specification

Posted: Mon Dec 23, 2019 9:05 pm
by Weenie

Re: Ultra torque specification

Posted: Tue Dec 24, 2019 8:28 am
by Aignan
I have a bbinfinity insert so the shell width is redundant

Re: Ultra torque specification

Posted: Tue Dec 24, 2019 9:35 am
by wingguy
What are you trying to achieve?

Re: Ultra torque specification

Posted: Tue Dec 24, 2019 6:27 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.

Re: Ultra torque specification

Posted: Tue Dec 24, 2019 10:57 pm
by bm0p700f
The crankset wont be ruined.

Re: Ultra torque specification

Posted: Wed Dec 25, 2019 12:30 pm
by Aignan
Thanks, I will install a new insert myself. Very happy with my BORG31s too

Re: Ultra torque specification

Posted: Wed Dec 25, 2019 12:30 pm
by Weenie