Why fit a hub dynamo? One word - reliability. A hub dynamo is always there, completely sealed from the elements, and always works - no matter how much mud or water there is about. If there’s one thing you really want from your lights in the middle of a wet winter commute, it’s reliable lighting. Wilfried Schmidt only makes dynamo lighting - he’s a bit obsessive about it ;-) The SON dynamos are the best ones made anywhere - light, able to provide lots of power if asked, low drag, and above all very reliable. | 
