Last year was my first bicycle ride event that included more than 12 people – the ride: Antelope by Moonlight is a night time ride along the shore of Antelope Island, Utah. Every cycle is required to have some fashion of headlight – other lighting is optional. Being the LED fiend that I am, of course I fitted the bikes with LED strips along the frames, wheel spoke lights, tail lights… but why stop there? I wanted to test these lights out that are advertised to make cool patterns as your wheel spins in a cool blue light. These lights from POLIYU – available at http://www.amazon.com/gp/product/B077Z3S1BQ – screw onto the valve stem of each tire (don’t worry, they come with a Presta and Schraeder adapter). These lights are powered by 3 button cells that are fairly cheap so you can buy lots more without breaking the bank. Motion and lack of light is what activates these lights and they will automatically shut off if either light is present, or there is no activity for about a minute.
For these lights to really light up your wheel, you have to be moving at a decent pace, which they do point out on the product description. Installation was literally as easy as putting the batteries in, and then taking the valve stem cap off and screwing this back on. They’ve held up well for a the few rides I’ve been on already and they’re tough enough that I expect a long life out of them.