SHIMANO GRX FC-RX820-1 Hollowtech II Black Crankset 1x12-Speed

SHIMANO GRX FC-RX820-1 Hollowtech II Black Crankset 1x12-Speed 

The Shimano GRX FC-RX820-1 Crankset brings 1x to Shimano GRX 12-speed. The 1x crankset is designed for gravel racing and fast gravel riding and, when paired with a 10-45t cassette, provides optimal gearing and gear steps to provide the best performance in gravel racing. It's constructed with a slight narrowing, compared to past models, to accommodate a narrower 12-speed chain and promises smooth and reliable shifting. With these two applications in mind, the GRX FC-RX820-1 chainring is a high-performing and versatile part of the fast gravel world.

Narrower teeth to accommodate a 12-speed chain width
Pairing with a 10-45t cassette provides optimal gearing and gear steps for gravel racing and fast gravel riding
Optimized for use with up to 10-46T and 10-51T cassette options
Hollowtech II spindle interface

Intended Discipline: Gravel
Spindle Diameter: 24mm (Shimano)
Bottom Bracket Included: No
Pedal Spindle: 9/16
Chainrings Included: Yes
Chainring BCD: 110mm Shimano Asymmetric
Chainring Mount: 4-Bolt
Chainline: 49.7mm
Drive Type: 1x
Speed Compatibility: 12 Speed
Chainring Material: Aluminum
Crankarm Material: Aluminum
Color: Black
Weight: 655g (172.5mm | 40T)
Not Included: Bottom Bracket

Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.