Glow in the dark

I know shame on me for putting this spot on my blog but I really like those 8bar NIGHT BIKES. 😉 And this is how it works: „Because of a special surface treatment you can charge your bike with sunlight or artifical light. Afterwards the bike will emit the light in darkness. The strongest effect can be achieved by charging it with UV light. The effect is really strong at the beginning and decreases from time to time.“ (8bar)