Small. Smaller. µ.
The smallest rear light approved for road use. µ [my:]. Minimalistic in a high-grade aluminium casing. Fits aluminium design headlights by Busch + Müller.
In spite of its small size, it offers good visibility all around. µ may be mounted to the mudguard as well as to the strut or seat post. Small, efficient and very visible, the rear light is a great fit for modern bicycles.