Technical Specifications Frame: Alloy 17" MTB Frame with oversize tubing Handlebars: Alloy Handlebar with Bar Ends attached Derailleur: Shimano 21 Speed rear derailleur and Shimano Thumb shifters Crankset: Alloy 170mm Crank with 24/34/42t Steel chainwheel Brakes: Front and Rear Alloy Disc Brakes Saddle: Comfortable Sports Saddle Wheels: Alloy rims, 26" x 1.95 MTB Tyres Seat Height: Min: 80cm