SPECIFICATIONS Size : 17 INCH Frame : Hi-Ten Steel Fork : Raleigh Suspension Fork Bottom Bracket : Sealed Cartridge Crank Set : 24x34x42 PROWHEEL Pedal : PVC Front Derailleur : Shimano Tourney FD-TZ500 Rear Derailleur : Shimano Tourney TD TY-300 7 Speed Shifters : Shimano ST-EF-500 3X7 Speed Freewheel : Shimano Tourney MF-TZ-500 7 Speed Chain : 1/2 x 3/32 Inch Rims : Raleigh Double Wall Alloy 36H Hubs : Steel 36H Tires : Kenda 27.5 x 2.10 Brake Set : Mechanical Disc Brakes Head Set : Neco Threadless Handle Bar : Raleigh Steel Grips : Soft Rubber Compound Stem : Alloy Threadless Seat Post : Steel 28.6mm Seat Clamp : Alloy 31.8 with QR