Shimano Alfine S501 Dynamo Hub

A solid choice for a relatively low-cost, reliable dynamo. Works well with your touring or commuting bike. It can also power many smart devices and GPS units via a handlebar-mounted USB port, in conjunction with either a Busch & Mueller Luxos U front light, Supernova's The Plug power converter, or the Sinewave Cycles Reactor power converter.

Quick-release axle for standard 100mm-OL dropouts.

For bikes with centerLock disc brakes (can also be used with rim brakes).