The SHIMANO FC-RX820-2 balances weight savings and optimal efficiency for mixed-terrain riding and racing. Double chainring gearing caters to the segmented demands of gravel cycling, maintaining the tighter gear steps needed to maintain your position in the bunch.

Features
Gravel-optimized 48-31t gear combination ratios preserve riding rhythm on rough surfaces
The 17t range covers an array of riding conditions
Smaller gear steps for cadence control on mixed-terrain riding
Hollowtech II crank arms provide strength and stiffness with the benefit of weight savings

Specifications
Compatible with HG 12-speed chains
47mm chainline
151mm Q-factor
Number of Chainrings: Double
Rings: 48/31T
Chainline/Hub Compatibility: 135/142 Road Disc Hubs > 415 mm Chainstay
Pedal Spindle: 9/16"
Crank Intended Use: Gravel
Spindle Interface Type: Shimano Hollowtech II
Drivetrain Speeds: 12
Chainring BCD: 110 Shimano Asymmetric, 80 Shimano Asymmetric
BB Included: No
Color: Black

Mfr Claimed Weight
710g