Dynamos dans le moyeu

Safely through the night. Bikers must see everything in the dark, while being seen! The key to such lighting is called SRAM D-Series. The hub dynamo converts the bike into a mobile power plant. No other dynamo solution offers more comfort and safety. It is an extremely dependable, weather independent and low-friction source of power. Fit once, then happily forget about it - something you can only do with a hub dynamo.