When your Turbospoke arrives you’ll find it packed with all of this: The Cool Silver Exhaust Pipe, Realistic Exhaust Tip, 3 Motocards, Black Universal Frame Clamp, 15 Custom Stickers and The Complete Tool Kit including Colour Instructions. Turbospoke is designed to fit 99% of bicycles. Turbospoke attaches to the lower rear chainstay of your bicycle. The chainstay must be between 12 and 27 millimetres in diameter (1/2 inch to 1 inch). It doesn’t matter if the chainstay is round, oval or even square as long as the widest point is no more than 27mm Turbospoke will fit.All of this comes in a great carry case box so you can bring your Turbospoke with you anywhere.