Turbospoke Bicycle Exhaust Turbospoke Bicycle Exhaust Get more out of your bike! Pull it all out - "customization" can be so easy...thanks to the Turbospoke bicycle exhaust. Turbospoke not only looks like a real motorcycle exhaust, but its part even causes a really cool engine noise. As soon as the wheels spin, the exhaust brings out the sound you want to hear, and varies depending on the speed. Example: You don't need a battery for Turbospoke. It is 100% powered by muscle strength. Turbospoke fits 95% of all motorcycles, is suitable for children over 6 years old and has a bicycle tire size of 16 inches. HOW DOES IT WORK? 1. Spokes hit the map: The engine card is firmly embedded in the black handle, with one end between the spokes. Now that the wheel is spinning, the card is hit by spokes and begins to vibrate. Vibrations are transferred to the bracket, creating the sound of the engine. 2. Due to the different shapes, each card has an individual vibration when hit by spokes. With Turbospoke, you can produce a wide range of different engine sounds. Since each engine card has two “power sockets”, the sound of each card can be set even more individually. Try it yourself and race against your friends! Motor cards - how long do they last? Motor cards are made of polypropylene plastic, also called PP. This plastic makes the cards extremely resistant. The cards are weather-resistant and last for years! Compared to the old card trick, the engine cards are much louder and much more durable! After some time and intensive use, you can see that the “power zone” of the card weakens and the color fades. This is completely normal and results from rubbing spokes on the map. But don't worry, as long as the card is in contact with the spokes, it will still make cool sounds. You may even discover new sounds.