Guys.....im wanting to swap my current chainset onto a new frame, however, this will mean swapping from 68mm to a 73mm square taper bb.
At present im running 68 x 107mm on a raceface prodigy crank. Problem is whilst the chainline is good (47.5 front / 44.5 rear) and the q is good, the issue is the non drive side arm is already only a nats from hitting the cup!
When i jump to 73mm bb, 107mm will have lost ( i assume ) 2.5mm each side and the crank wont go on. If i add the 5mm and go for 113mm its going to screw my chainline and the q .
The only thought ive had is to use 110mm.
Am i correct in thinking that on 110mm vs 107mm the additional distance is all added to the non drive side....ie 110s are asymmetric.....as opposed to symmetric 107mm.
At present im running 68 x 107mm on a raceface prodigy crank. Problem is whilst the chainline is good (47.5 front / 44.5 rear) and the q is good, the issue is the non drive side arm is already only a nats from hitting the cup!
When i jump to 73mm bb, 107mm will have lost ( i assume ) 2.5mm each side and the crank wont go on. If i add the 5mm and go for 113mm its going to screw my chainline and the q .
The only thought ive had is to use 110mm.
Am i correct in thinking that on 110mm vs 107mm the additional distance is all added to the non drive side....ie 110s are asymmetric.....as opposed to symmetric 107mm.
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