Highly efficient, super light weight, premium grade 6 volt 3 watt dynamo front hub for easy to use and rigid 12 mm axle fitment.

Features

• Provides bright illumination for safer night riding without the need and expense of replacing batteries
• Important weight savings are made by using an efficient and light weight aluminium coil structure
• For use with rim brakes
• Labyrinth and contact sealing as used on the premium groupsets - low-friction seals and internal grease sleeve effectively shut out water, mud, and dirt without affecting rotational smoothness increasing service life
• Borozon treated cup and cone bearing races - super mirror finish bearing races reduce friction providing smooth and precise bearing rotation
• Push-in wiring harnesses make installation fast and easy
• Double anodized, premium finish forged aluminium hub shell
• 12 mm x 100 mm O.L.D. SM-AX720 axle sold separately
• Average weight 550 grams