for 12mm or 15 mm thru axle, standard width 100 mm

• for rotors with robust 6-bolt mount

• for lots of light even at low riding speed

• also for various charging tasks using a charger

SON 28 is designed for high power output at low speed. It conforms with German legal regulations for wheel sizes up to 700c/29er. This is why SON 28 gives a lot of electricity for lights or for powering charging devices even when cycling slowly

The SONdelux has a generator especially made for LED-headlights like Edelux II. Its voltage curve climbs somewhat slowlier than the SON 28 voltage curve. This means you will have the same voltage at higher speed compared to SON 28

As LEDs provide high light output even at low power the different electrical properties between SONdelux and SON 28 become less relevant. With SONdelux you will have a little less light at speeds below 20 km/h, yet with more than 60 lux at 15 km/h it is more than enough. At higher speeds you won‘t notice any difference