Originally Posted by
lverhagen
Thank you for all the responses. My cranks are 1994 Shimano 105 doubles (Part number FC-1055). The spindle is indeed 120 asymmetric, however I am not sure which side the offset was meant to be on. Is there a hard and fast rule for this?
@Bianchigirll - both the cups and spindle are extremely pitted. I do not plan to reuse them at all.
Shimano FC-1055 cranks should be used with a 113 or 115 mm symmetrical bottom bracket spindle. The one currently in your Diamondback is completely wrong.