A modern version of the bulb-shaped metal back lights from the 50's, which were Spanninga's flagship for decades. In the new version, the No. 9 back light comes back in retro style and with the reliability of the 21st century. The No. 9 backlight pays tribute to the past with its chrome-plated surface and pear-shaped lines. Therefore, it will surely please the nostalgic-minded cyclists who love retro chic and fixie bikes. Simple, stylish and built for comfort and practicality, No. 9 is the backlight you're looking for for your modern retro bike. Blending classic character with just the right modern accent, No. 9 offers the best in modernized LED technology that gives good visibility for the cyclist and safety for other road users. Details:- Funkcion:?Standlight (Lights up when the bike is stopped for about 4 min.) - Light source:?1 red LED - Power source: Dynamo - Weight: < 50g.