Shimano GRX ST-RX825 Di2 Shift/Brake Lever BR-RX820 Hyd Disc Brake Caliper - Right/Rear 12-Speed Flat Mount Caliper For 25mm Mount MFPN=2X050ZZ-M Made from X21 technical waterproof

Made from X21 technical waterproof fabric with a 6oz nylon lining

FH-RS770 Rear Hubs provide a simple setup and reliable performance

}DT Swiss ER 1600 Spline 23 Rear Wheel - 700 12 x 142mm Center-Lock HGR11 Black

Salt Plus Orion Guard sprockets are 8mm thick and include 19mm & 22mm spindle adaptors

Ring Position/Type Chain Retaining Single Ring Tooth Count 34 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 Red Direct Mount Type Direct Mount CINCH

Shimano GRX ST-RX825 Di2 Shift/Brake Lever BR-RX820 Hyd Disc Brake Caliper - Right/Rear 12-Speed Flat Mount Caliper For 25mm Mount MFPN=2X050ZZ-M Made from X21 technical waterproofShimano GRX ST RX825 Di2 Shift Brake Lever with BR RX820 Hyd Disc Brake Caliper Right Rear 12 Speed Flat Mount Caliper For 25mm Mount. The Shimano 12 speed Shimano GRX Di2 Dual Control Lever delivers fast wireless shifting for gravel and mixed terrain riding. The ergonomic lever features raised hoods ribbed surface texture and an anti slip coating on the brake lever for increased security and control. The hood body bracket shape is newly optimized for