SON = Schmidts Original Nabendynamomehr Licht

Produkte - Dynamos

SON 28 klassik

Tried and Tested

SON 28 klassik From 2000 to 2011, SON 28 with the cylindrical hub shell was sold more than 60,000 times as the standard hub dynamo.

End of 2011, it was replaced by smaller, lighter models with spherical cases.

Technical Data

Electric Power: 6V / 3W according to German government's road traffic regulations (StVZO)
German Mark of Conformity: ~~~ K 179 for 26" - 28"
Efficiency: 65% at 15 km/h
No-Load Power Input: 0,5 Watt at 15 km/h
Magnets: neodym iron boron, 26 poles
Connection: 4,8 mm flat spades, 2-pin to connect without ground connection
Axle: hollow axle Ø 10 mm, strain-hardened stainless steel
Bearings: deep groove ball bearing 629 2RSH (SKF)
Hub Shell: aluminium 6082 T6
Colors: silver polished or anodized black
Sealing: alloy dust shields, rubber lip seals and pressure compensation system
Spoke Drillings: 32 - 48
Weight: 570 g (without skewer)
Warranty: 5 years

SON 28 klassik disc

Disc Mount: for 6-bolt rotor (IS 2000)
Spoke Drillings: 32, 36
Model for Tandem: reinforced axle


The VSF eV (registered society) board for certification not only certifies excellent quality and functionality of products, but also evaluates sustainable production of manufacturers, corporate culture and service orientation (for example long-term availability of spare parts). Thus Linkhinweis „VSF..all-ride“ certified bicycle components are all top-quality products - proved and tested in practice.

Linkhinweis Fact Sheets and Assembly Instructions (PDF)