This bike is in perfect condition. I recently acquired it new, and took it to the shop for a tune up. Frame: Aluminum Fork: SR Suntour XCE-DS 100mm Brakes: 160mm rotors, mechanical Tektro calipers Drivetrain: Shimano Altus M370 8s Cassette: 8s 11-40T Crankset: 28T Wheels: QR w/ Formula hubs, Tires: Kenda 29" x 2.4"