SPECIFICATIONS Size : 17.5, 18.5 Inch Frame : Light Alloy 6061 Fork : Raleigh Suspension Bottom Bracket : Sealed Cartridge Crank Set : 1/8x44T Steel with Single Guard Pedal : PVC Chain : 1/8 x 102 L Rims : Raleigh Double Wall Alloy 36H Hubs : Steel with Front QR Tires : Kenda 27.5 x 2.10 Brake Set : Mechanical Disc Brakes Grips : Soft Rubber Compound 130MM Stem : Raleigh Alloy Seat Post : Alloy, 27.2 x 280mm Saddle : Raleigh Seat Clamp : Alloy QR Brake Lever : Half Alloy Freewheel : 1/8x18T