The 12-speed DURA-ACE Crankset is available in a couple of different crank lengths, from 160mm all the way to 177.5mm.
There are three different chainring options:
The Power Meter version of the crankset weighs 748 g, while the regular version weighs 690 g.
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Building a 12-speed Di2 bike involves a couple of steps and decisions to make. Are you building a rim brake bike or a disc brake bike? Will you connect the shifters wired, or run them wireless? What cables and what length do you need? I'll guide you along the process.
Bought a new Shimano FC-R9100 Power Meter? This guide walks you through installing it. It's not complicated and should take less than half an hour.
