Shimano FC-9100 Dura-Ace Crankset 11 Spd 50x34t 172.5mm w/opkge

KFCR9100DX05

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Shimano FC-9100 Dura-Ace Crankset 11 Spd 50x34t 172.5mm w/opkge
Shimano FC-9100 Dura-Ace Crankset 11 Spd 50x34t 172.5mm w/opkge
Shimano FC-9100 Dura-Ace Crankset 11 Spd 50x34t 172.5mm w/opkge
Shimano FC-9100 Dura-Ace Crankset 11 Spd 50x34t 172.5mm w/opkge

As always, the spider is great to look at. But like with any proprietary tech, Shimano's top-secret BCD may inspire a healthy dose of skepticism. Rest assured that Shimano has its reasons. With the Dura-Ace 9100 crankset, you can run anything from a 50-34 combo to a 55-42 just by swapping chainrings, chain, and repositioning your derailleur. No need for a spider swap or an entirely new set of crank arms. Effectively, this means your bike can be a TT missile one weekend, a hill climb champ the next, and versatile all-rounder for the time in between. If you’re a privateer racer, or a self-sponsored athlete, it makes a whole lot of sense.

A top-of-the-line classic continues to keep up with the times

Redesigned crank arm accommodates disc brake frames

Chainline and tooth profile adapted to gearing on disc race bikes

Reduction in weight without a sacrifice in strength

Allows for huge range of gearing options with a single crank

Shimano proves there's still a place for aluminum crank arms at cycling's most elite levels