If you're a modern dad, you know that those two key ingredients to making a motor noise on bike are a playing card and a clothespin. You might have some old cards around, but good luck on that a clothes pin, which is now only a distant memory. Now you Now you can share a key memory of your childhood by attaching the Kool Rider, an almost indestructable plastic card onto your child's bike. This is one way to help get him or her off the couch to go out and get some bike time.