B&M rear light Toplight Line brake plus Rear light with brake light function a processor integrated in the rear light interprets a signal from the hub dynamo, if the speed drops suddenly and significantly, the rear light lights up significantly brighter - like a brake light.
Busch + Müller
Busch + Müller is the leading brand for powerful light on bikes, MTBs and e-bikes. All headlights and taillights are StVZO-approved.