Bike chalk

Nowadays, you can communicate with anyone nearly in any position in the world via radio, but during the bike race, this kind of communication is gonna be a disturbing for the driver. But how to tell your teammates which is the right way? Contrail offer a good solution.

It is attaches on the wheels of a bike and applies a thin layer of colored chalk to the bike's tire, so that you teammate will recognize and follow its pioneer.

Source: inewidea.comAdded: 6 May 2009