Screw them onto your valve stem and these alien shaped tire sparx light up whenever your wheel spins with bright Green or Pink LED light.
Alien Tire Sparx light up at all speeds and automatically shut off after a short time.
Supplied in packs of two, each Alien Encounter Tire Sparx valve cap comes with 'try me' batteries fitted and another set of batteries included. Each uses 3 x AG10 button cell batteries which are easy to replace.
Of course Tire Sparx are not intended as a substitute for proper bike lights, reflectors and high visibility clothing. Tire Sparx are not suitable for children under the age of 3 due to small parts.
* Bright LED lights,
* Batteries included (and a spare set!)
* Start and stop automatically - even at slow speeds!
* Choose Green or Pink colour
* Get your wheels glowing!
note: These Tire Sparx are designed to fit on a 'Schrader' valve (7.7mm in diameter) found on most mountain and BMX bikes. They are not suitable for smaller 'Presta' valves commonly found on road / racing bikes.