The HollowTech II 12-speed Dura-Ace road bike chainset stands as the epitome of lightweight yet rigid construction, earning its place as the preferred choice among elite road racers globally.

At the core of the bicycle, the Dura-Ace FC-R9200 road bike crank ensures optimal power transfer with every pedal stroke. Featuring hollow arms and chainrings, it prioritizes weight reduction without compromising stiffness and shifting precision.

The FC-R9200 crank excels in two pivotal aspects: converting pedal exertion into drivetrain power and delivering swift, precise front shifting. Equipped with HollowTech II crank arms to minimize weight and Shimano’s unparalleled chainring designs, the FC-R9200 guarantees peak performance. Moreover, it offers shorter crank arm lengths to cater to individual rider preferences.

HollowGlide:
Employing hollow technology, the outer chainring enhances rigidity while shedding excess weight. This design optimization facilitates superior power transfer and ensures expedited, accurate front shifting.

HollowTech Crank Arm:
Crafted from hollow forged crank arms, this crankset achieves lightweight construction, thereby reducing both the bikes overall weight and rotating mass for enhanced acceleration. Striking the balance between weight reduction and maintaining strength and rigidity is achieved through Shimanos advanced forging technology.

HollowTech II:
This technology delivers an optimal blend of stiffness, strength, weight, and rotational performance. Engineered to maximize power transfer, the HollowTech II crankset guarantees efficient pedalling through its rigid design. Its lightweight configuration aids riders in sustaining endurance over extended distances, thereby elevating overall cycling performance.

Key Features:
– Hollow outer chainring, offering substantial improvements in rigidity and weight reduction.
– Bottom bracket seal design minimizes bearing interface, ensuring exceptionally smooth rolling and enhanced durability.
– HollowTech II integrated bottom bracket design utilizes wider bearing placement and larger axle diameter, enhancing stiffness and efficiency.
– Wide range of chainring ratios and crank arm lengths available, enabling customization for riders across various racing disciplines.
– Specially developed teeth work in tandem with 12-speed chains, ensuring improved contact for greater efficiency and enhanced power transfer.
– Industry-leading HollowTech II 4-arm cold-forged hollow crank arms have evolved to enhance rigidity, reduce weight, and improve strength.
– The hollow outer chainring eliminates outer chainring flex, significantly enhancing shift precision even under high loads.

Specifications:

– Compatible Chain: HG 12-Speed
– Q-Factor: 148mm
– Chainline: 44.5mm
– PCD: 110mm
– Weight: 685g

Click here for a compatible chain: Shimano XTR/Dura-Ace CN-M9100 12 Speed Chain

Genuine, brand new, boxed Shimano product – Biketart are an official UK Shimano stockist.