Originally Posted by
SoSmellyAir
Let me let you in on a super secret: what you want is less at Bike Tires Direct than almost everywhere else:
Shimano 105 FC-R7100 12 Speed Crankset [IFCR7100MX04] (biketiresdirect.com)
But you have to wait a couple of weeks for the 160 mm version.
It seems both you and everyone else here just assumes your bike has a HollowTech bottom bracket (common enough and fits Shimano cranks); is that the case? I don't know as my experience only started with the 11-speed 105-5800 generation.
Cheapsters everywhere applaud you! Looks like good price, and available down to 160. I don't like the crank design for a variety of retro-grouch reasons (none having to do with the hollowtech/external-bearing design, that's brilliant), but I'm in the minority.