The S3 is built with a Reynolds 520 chromoly steel frame and features Shimano GRX BR-RX400 hydraulic disc brakes. With 20 gears, it can tackle the steepest of climbs. Long and tall mountain bike geometry ensures comfortability and stability for long days in the saddle and hydraulic disc brakes allow maximum control. Externally located mounts let you easily attach fenders, carry racks, bags and water bottles.