28 Dynamo Hub

Full power even at slow speeds: the Son 28 hub dynamo by SON
The SON 28 is a hub dynamo universally approved for all wheel sizes from 16″ to 29″ . It reaches its rated power in a 28″ wheel at about 16 km/h. It is therefore recommended if a particularly bright light is required when driving slowly or if other devices are to be operated or if batteries are expected to be charged. Compared to its predecessor the Son classic, the power loss during idling has been reduced by approx. 15% and the weight by has been decreased by 140 g.
Information regarding the return of batteries and electrical equipment:Information on the return and disposal of used batteries and electrical equipment can be found here.
Specifications:Output:6V/3W (according to StVZO)Efficiency:65% at 15 km/h in a 28″ wheelPower Consumption at Idle Speed:0.5 W at 15 km/h in a 28″ wheelOver Locknut Dimension:9 x 100 mm quick releaseSpoke Hole Count:32 hole, 36 holeBrake Type:rim brakeTechnical Information:Series:Son 28Application:City & TouringBody Material:aluminium (6082-T6)Bearings:deep groove ball bearing 629-2RSH (SKF)Seals:labyrinth seal, gaskets and pressure compensation systemFlange Distance (L/R):62 mm (31 mm/31 mm)Partial Bolt Circle Diameter (L/R):54 mm/54 mmSpoke Hole Diameter:2 mmWire Connector:4.8 mm flat plug, 2-pole, insulated returnApproved For:Street Use in Germany:yesCheck Number:K~~834Compatibility:for 16″ to 29″ wheels (400-742 mm)for 3 mm coaxial cableFeatures:neodymium iron boron magnetic rotor, 26-poleshollow axle (10 mm) made of work-hardened, stainless steelManufacturer Numbers:polished 32 hole:303202black 32 hole:303212silver-anodised 32 hole:303292red-anodised 32 hole:303222black 36 hole:303612silver-anodised 36 hole:303692red-anodised 36 hole:303622blue-anodised 36 hole:303642Contents:1 x SON Son 28 dynamo hub1 x bolt-on axle (hex socket)