SON 28 is a hub dynamo universally approved for all wheel sizes from 16″ to 29″. The rated output is achieved in the 700c (622)-wheel at approx. 16 km/h (SONdelux at 19 km/h). Thus, SON 28 is recommended if a lot of light is required at low speed or when either devices are to be operated or their batteries charged.

• for 15 mm thru axle, width 110 mm (Boost Standard)
• Centerlock disk brake mounting
• wide flange spacing (symmetrical)
• for rotors with with Shimano center-lock-mounting
• for a lot of light even at low riding speed
• also for various charging tasks using a charger