Just tuned up this specialized hard Rock sport. 26" wheels. Medium size frame is in good shape, and will fit someone between 5 ft 6 in and 5 ft 10 in tall give or take. It's really beefy frame you could probably use it as dirt jumper if you wanted to. Shifts and brakes work well, wheels are true, tubes and tires hold air with decent tread left. Bike is ready to ride.