Shimano Dura-Ace FC-R9200 Hollowtech II Crankset 2x12-Speed Chainring - Crank Length:52/36 170mm Standard tubes offer good puncture

Standard tubes offer good puncture resistance and a solid airtight performance in every instance

FEA developed

it’s a lot of effort but details matter

Intended Rotor Thickness: 1

Shimano Dura-Ace FC-R9200 Hollowtech II Crankset 2x12-Speed Chainring - Crank Length:52/36 170mm Standard tubes offer good punctureDURA ACE HOLLOWTECH II Crankset 2x12 speed FC R9200 DURA ACE FC R9200 crank, the heart of the bicycle, ensures that no portion of your pedal stroke is wasted. With hollow arms and chainrings, weight is kept to a minimum but stiffness and shifting precision is maximized. The DURA ACE FC R9200 crank performs two vital functions: transferring your pedaling effort into the drivetrain and ensuring the fastest, most precise front shifting available. With