Shimano Dura-Ace FC-R9100 11-Speed Crankset

Why We Like The Dura-Ace FC-R9100 11-Speed Crankset

If you, like a few of us old souls around the Competitive offices, are holding fast to your belief in the soul of mechanical shifting, Shimano hasn´t abandoned you. Though the world may very well be moving towards 100% electronic drivetrains someday in the future, mechanical still makes a hell of a case for itself. With smooth lines, elegant finishing, and functionality beyond reproach, the redesigned mechanical Dura-Ace drivetrain calmly holds its own in this brave new world of wires, batteries, and display screens. It´s fitting then, that the Dura-Ace FC-R9100 11-Speed Crankset also comes with the double chainrings that many roadies are loathe to abandon just yet. Call upon your granny gear when needed with this lighter, stronger version of a top-end classic, and embrace tried-and-true tradition of cables. Of course, in the even that you do decide to run electro-shifting, the crank´s ring profile plays just as nicely with Di2 derailleurs.

Details

• 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
• Item #SHI00DR

Tech Specs

Arm Material

aluminum

Arm Length

170mm, 172.5mm, 175mm

Bolt Circle Diameter

110mm

Bolts

4

Rings

2

BB Type

[recommended pressfit] SM-BB92-41B, [recommended threaded] BB-R9100

Spindle

24mm

Q Factor

146mm

Chainline

43.5mm

Compatible Components

Shimano Dura Ace 9100

Claimed Weight

[black, 170mm 50/34] 1lb 5.6oz (611g), [black, 170mm 52/36] 1lb 6.2oz (628g), [black, 170mm 53/39] 1lb 6.3oz (633g), [black, 172.5mm 50/34] 1lb 6.2oz (628g), [black, 172.5mm 53/39] 1lb 6.6oz (641g), [black, 175mm 50/34] 1lb 6oz (624g), [black, 175mm 52/36] 1lb 6.5oz (637g), [black, 175mm 53/39] 1lb 6.6oz (642g)

Manufacturer Warranty

3 years