28 Disc QR Hub Dynamo

The SON 28 hub dynamo is universally approved for all wheel sizes from 16" to 29". It reaches its nominal power in a 28" wheel at approx. 16 km/h. This makes it highly recommendable when you ride slowly and need a strong light or when you want to use or charge other devices, e.g. a navigation system or smart­phone. Compared to its predecessor, no-load losses have been reduced by approx. 15% and weight by approx. 140 g.

• 65% efficiency at 15 km/h in a 28" wheel
• Power consumption when idling: 0.5 watt at 15 km/h in a 28" wheel (corresponds to a gradient of 12 cm over 1 km)
• Threadless hollow axle made of cold harden­ed, stainless steel
• Hub sleeve made of aluminium 6082 T6
• High-grade groove ball bearings
• Hub with double seals inside
• Weight: approx. 465 g (without skewer)
• 6-hole brake disc mount according to international 2000 standard
• 6 volt, 3 watt
• 36 hole
• Incl. skewer
• Hub width: 100 mm
• Note: without overvoltage protection (when using a front light/back light without overvoltage protection, we recommend prod. code: 534215)
To prevent your lights from being permanently on, you will need a front light with a switch!