Shimano GRX ST-RX610 Shift/Brake Lever BR-RX410 Hydraulic Disc Brake Caliper - Left/Front 2x Flat Mount Caliper BLK MFPN=00.4118.200.106 Ring Position/Type Chain Retaining Single 1528230250843.0 Color:Red 37 BB Frame Interface MFPN=00.7518.080.002

Shimano GRX ST RX610 Shift Brake Lever BR RX410 Hydraulic Disc Brake Caliper Left Front 2x Flat Mount Caliper BLK MFPN=00.4118.200.106 Ring Position Type Chain Retaining Single 1528230250843.0 Color:Red 37 BB Frame Interface MFPN=00.7518.080.002 Ring Position Type Chain Retaining Single Ring Tooth Count 30 Round or Oval Round Drivetrain Speeds 9 Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Offset 3 Chainline Hub Compatibility 135 142 MTB Hubs Chainline Hub Compatibility 170 177 Hubs Chainline Hub Compatibility 190 197 Hubs Chainline Hub Compatibility 150 157 DH Hubs Chainline Hub Compatibility 157 Super Boost Hubs Chainline Hub Compatibility 141 148 Boost Hubs Material Aluminum Defined Color Blue Direct Mount Type Direct Mount CINCH Length: 323 mm