Polaris RMK Full Suspension Bicycle Frame/Fork: Alloy dual suspension 18.5 in frame with Force Suspension Fork Wheels/Tires: Aluminum Rims with WD 26 x 1.95 Tires Drivetrain: 21 Speed, Shimano Revo twist, Shimano rear TX35 derailleur, Shimano front derailleur and Shimano Mega Range cassette Brakes/Cockpit: Front mechanical disc brake, aluminum linear pull rear brake, aluminum stem and seat post with a steel handlebar Includes: Reflectors, kickstand and quick release seat post clamp and front wheel