Bike spoke led light,flash bike light:14 blue LED flashing ,5 words 40 patterns,water proof,CE,ROHS Bike Spoke LED light,flash bike light with 40 graphic patterns and 5 messages will make you a biking attraction. It also shows the riding time in: hours, minutes, seconds and the number of riding cycles. It needs to be installed on the bike’s spoke. Features:Fit on bike with a wheel diameter of 20″ ...