Size Medium Fun and light ride 29" Wheels. Hydraulic Brakes Forks with lock switch and adjust rebound Frame Material: Kona 6061 Aluminum Butted Wheels: Alex DP25 Front Suspension: 100mm Fork: Suntour XCR 32 LO-R Coil Spring 100mm Crankset: Shimano Altus Drivetrain: Shimano Alivio/Altus 2x9spd Brakes: Tektro HDM275 with 180mm front / 160mm rear rotor Seat Post: Kona Thumb Cockpit: Kona XC/BC Riser Bar/Kona XC Stem with Kona Key Grip slip on Front Tire: WTB Trail Boss 29x2.25” Rear tire: WTB Trail Boss 29x2.25” Saddle: Kona XC