Welcome to Joker Spokes!
Kids have been putting stuff in their bicycle spokes for years to make motorcyle sounds. After my son tested my 1st prototype, a number of the neighbor kids came knocking on my door wanting the Joker Spokes on their bikes. I have also had a number of mothers asking to buy Joker Spokes to give as birthday gifts.
The Joker Spokes clamp is made of high strength polycarbonate. The clamp fastens to the front fork of most 20” bikes and many other size bikes. The Joker Spokes cards are made of durable, flexable, polypropylene. By inserting the specially designed card, it produces a motorcycle sound. Joker Spokes cards come in a variety of colors and sizes, each size producing a different type of sound.