SPECIFICATIONS Frame : Hi-Ten Steel Fork : Suncross Suspension Bottom Bracket : Sealed Cartridge Crank Set : 1/8x44T with Guard Pedal : PVC Platform type Freewheel : 18T full ball Chain : 1/2 X 1/8 Rims : Double Wall Alloy Rims 36H Hubs : Steel 36H With Front QR Tires : Suncross 27.5 x 2.125 Brake Set : Mechanical Disc Brakes Head Set : Threadless Handle Bar : Steel Grips : Soft Rubber Compound Stem : Alloy Threadless Seat Post : Steel 31.8 Seat Clamp : QR