Shimano GRX ST-RX810 Shifter/Brake Lever BR-RX810 Hydraulic Disc Brake Caliper - Left/Front 2x Flat Mount Caliper ModelNumber=G0982 All-Road Aero Optimized Tire Size:

All-Road Aero Optimized Tire Size: 25c-28c Tubeless only ENVE INNERDRIVE System hubs

Shimano Road brake shoe sets Color Black Intended Brake Type Caliper Pad Attachment Style Bolt-In (Caliper) Pad Type One Piece Rim Compatibility Standard

Third party online retailers must be pre-approved by manufacturer

Tooth Count 50/37Drivetrain Speeds 12Round or Oval RoundMaterial AluminumColor BlackDefined Color BlackDirect Mount Type Direct Mount SRAM 8-Bolt

Shimano GRX ST-RX810 Shifter/Brake Lever BR-RX810 Hydraulic Disc Brake Caliper - Left/Front 2x Flat Mount Caliper ModelNumber=G0982 All-Road Aero Optimized Tire Size:GRX ST RX810 Shifter Hydraulic Brake LeverGravel inspired Dual Control shift brake lever and bracket ergonomics Anti slip brake lever Same light shifting operation as top tier systems Tooled reach adjust allows for lever to be adjusted to fit multiple hand sizes and riding preferences Brake Lever Actuation Hydraulic Double or Triple Double Rotor Included No Brake Caliper Mount Flat Mount Brake Lever Use Left Drivetrain Speeds 11 Front Der Shifter