SPECIFICATIONS Size : 17.5, 18.5 Inch Frame : Aluminium Alloy Disc & V-Brake Compatible , Replaceable Derailleur Hanger Fork : Raleigh Suspension with Hydraulic Lock Out Bottom Bracket : Sealed Cartridge Crank Set : Shimano FC-TY301, 42-34-24T Pedal : PVC With Steel Outer Cage Front Derailleur : Shimano FD-TY700 Rear Derailleur : Shimano Acera RD-360 Shifters : Shimano SL-M310 3x8 Speed Chain : KMC Rims : Raleigh Double Wall Alloy 32H Hubs : Shimano TX505 32H Tires : Kenda 27.5 x 2.10 Brake Set : Shimano Hydraulic Brakes Head Set : Raleigh Threadless Handle Bar : Raleigh Alloy Grips : Soft Rubber Compound Stem : Raleigh Alloy Seat Post : Raleigh Alloy 31.6mm Saddle : VADER Seat Clamp : QR Alloy Brake Lever : Shimano Hydraulic Cassette : Shimano CS-HG200-8