Imagine if you could transform your everyday bicycle to have the look and sound of a real motorbike…okay scratch that. Ask your children to imagine, and if you approve, Turbospoke could make it happen. This bike accessory not only has the look and feel of a real motorbike exhaust pipe, it also makes the most awesome realistic engine sounds. The engine sounds start as soon as the wheels turn, so the sound changes as your speed does. The 100% pedal powered requires no batteries, and is perfect for any fan of Nascar, motocross, Formula 1 or just plain old noise.