Mathmos LED Bike Wheel
Mathmos Bike Wheel Lights Available in Multi-color or White Mathmos Bike Wheel Lights easily screw directly onto your bike wheel valves and create circles of light when you cycle. The lights use high quality LEDs with light/motion sensors, which mean they will only come on at night when youre on the move. They are great fun lights but also aid visibility and therefore safety. They should only be used in conjunction with standard bicycle lights and not on their own. PLEASE NOTE: Bike Wheel lights will not fit racing bike valves. Bike Wheel Lights will fit Schrader and Woods bike valves. They do not fit Presta valves. Weight: 20g / 0.7 ounce Product size: overall diameter 15 mm (0.6"), overall height 60 mm (2.4") Light: high quality multicolor, singular LEDs Power: 3 x A610 button cell batteries (replaceable) Materials: PC plastic with aluminum base