Topic starter
Hiya folks,
Building up a hardtail with old parts I've got lying around. One part that is prehistoric but good quality I am going to use is an stx rc chainset (triple).
Can anyone advise what length BB axle I need? I'm guessing 113 but I don't know for sure.
Oh its on an On One 456 summer season frame.
Cheers
Paul
Posted : 25/03/2013 10:48 am
Axle length is a function of the crank specification normally.
The 456 is designed around a standard 47.5mm chainline and typically cranks such as middleburn or Truvativ etc would need 113mm axle lengths to produce that chainline, as you say.
Posted : 25/03/2013 10:50 am
Given the tight chainring clearance I've always used 118mm axle length BBs with my Inbreds (853, Scandal, 456) with my square taper chainsets with no shifting/chain line issuses
Posted : 25/03/2013 1:54 pm