Chainset/BB Question.

[Iwasgoodonce]

Today, I will be mostly wanting to buy a chainset. Before I'm off to the 'Wanted' section, a quick question. I want a chainset with proper sized rings, around 24-36-46 sort of size. Are there any measurements I can take on the frame to tell me the sort of cranks I need? I want to avoid having a very long BB axle. The frame was built (in the US) in 1993. The frame was completed in around 1996 so I have decided to combine whatever components I find from these years. I always was confused by the lo-profile name and things like BCD, what does it all mean?

Thanks as always.

 

[dbmtb]

M900 XTR BB between 110 and 113 depending on frame
110 BCD which means the size rings you are after.

M950/1 XTR - Octalink so low-profile. Axle length not an issue.

Alternatives
Middleburn RS3 (113mm BB) was available with 110 BCD.

Most high-end chainsets from this period are 110 BCD too - but you will find most of them need at least a 118mm axle.