SHIMANO GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world. It isn’t a reworked set of road components. It represents a ground up look at how cyclists want to explore their world. SHIMANO GRX helps you eliminate excuses, instead urging you to try that rough sidetrack or ride that little bit longer. It offers you the option to Explore Beyond.

Features:

• Adjustable chain stabilizer prevents chain slapping and drops
• Switch stabilizer ON/OFF to match the terrain
• Gravel-tuned clutch tension
• Silent and uninterrupted rear shifting on rough terrain
• Smooth and reliable mixed surface shifting
• Compatible with current road DUAL CONTROL LEVER
• Top sprocket: Max. 11T/Min. 11T
• Low sprocket: Max. 42T/Min. 40T
• Total capacity: 31T

Specifications:

• Model: RD-RX812
• Series: SHIMANO GRX 11-speed
• B-Axle: Hollow axle
• Cable adjuster
• Compatible chain: HG-EV 11-speed/HG-X11
• Direct attachment (Conventional)
• Fluoric coated link bushings: 4
• Low sprocket Max.: 42T
• Low sprocket Min.: 40T
• Pulley: Teeth 11T
• Rear speeds: 11
• Top-Normal Spring Type: SHIMANO SHADOW RD+
• Top sprocket Max.: 11T
• Top sprocket Min.: 11T
• Total capacity: 31T