26" Hyper Shocker 18-Speed Men's Bike, Model OPP-152601 Shimano equipped. 18-speed twist grip shifting. Suspension steel frame with suspension fork Front and rear linear pull brakes. Alloy quick release seat clamp. Assembled dimensions: 67"L x 42"H x 24"W Brakes: linear pull front and rear brakes. Seat: deluxe padded Frame: steel Wheel type: 26" spoked wheel Tires: 26" x 2.25" knobby tires Weight: 32 lbs Pedals: resin platform pedals