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ORIGIN DURA-ACE 9100 RECHARGEABLE (24MM) POWER METER CRANK INFORMATION
SRM created the crank-based power meter, and has always been out in front with well-tested, accurate, and consistent units that are incredibly durable. With the Origin Dura-Ace 9100
Rechargeable Power Meter Crank, they move ahead again with an incredibly light, stiff, interchangeable design.
SRM used to take Shimano Dura-Ace cranks and cut off the spider to attach their power meter. No longer. They now go to Look, the French pedal, frame, and crank manufacturer, for the crankarms
and the thru-axles. The result is lighter, stiffer arms that feature Look’s unique Trilobe nut inside the end of the arms. The nut has three different positions, which allows you to tune your
crankarm length from 170mm to 172.5mm to 175mm. The arms also pinch the hollow aluminum thru-axle, so you can remove the arms completely or individually. The design, utilizing metal nuts,
bolts, and washers, keeps the arms light and reduces stress on the carbon.
