Hi guys, just need some advice re bottom bracket size. Have taken out my existing Shimano bb-un52, it's 73 x 110mm spindle length long. I only have about 2mm clearance between the left hand crank arm and the bottom bracket shell. So in order to fit the yosepower pas sensor I need another 5 mm, but if I go with say 118mm long, does that give me an extra 8mm on the left hand side, or is it just an extra 4 mm on both sides ? If thats not enough do I go for the 73 x 122m version, but will my chain line be massively out then ?
cheers