T-Mar, thanks for posting and clarifying about the specifics of the Thun crankset. You're an invaluable resource to this forum. I apologize if you took offense, it wasn't intentional. I did a quick google search for info on this model and glanced over one of the results. It was your response I referenced, and was formatted differently and I must have picked up your member since: 2004 date somehow as the posting date. Hence the decade old, and the rest was me paraphrasing.

When I was able to remove the crankset, there was a contradiction to the info I found. That's why I wanted to dig further. I guess I'm fortunate Benotto sourced a conventional BB for 88.
For a brand with such history, and a model that's been offered for several years, there is surprisingly little
to be found about it. Would love some feedback on this hi-ten steel race frame's ride characteristics.


here are a few shots of the BB. Perhaps it's a replacement instead of a factory original. It has a 120mm asymmetric spindle, and an unusual pin patterned adjustable cup.