Replace your bike's stem cap with a clock, thermometer, picture frame or compass. Works for any bike with a 1" or 1 1/8" threadless style headset. Simple installation. Do you have Time to Ride? I hope so... Now knowing how much is just as easy as looking at the clock in your car's dashboard. Quality waterproof construction, brilliantly anodized aluminum, shiny chrome bezels. Add some style and function to your bike.