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Son 28 Disc Center Lock Dynamo Hub
For Disc Brake with Center Lock Rotor
Blue only in 36-Hole Version available!
SON 28 is a generally approved hub dynamo for all wheel sizes up to 700c (29"). On a 28"-wheel nominal output is reached at about 16 km/h (SONdelux at 19 km/h). SON 28 is recommended when more light is required at low speed or when other devices are to be operated or their batteries recharged.
Compared to the SONdelux, the appearance is similar but the flanges are more widely spaced by 12mm and the bearings by 10 mm.
Technical Data
| Electric Power: | 6V / 3W according to German government's road traffic regulations (StVZO) |
| German Mark of Conformity: | ~~~ K 834 for 16" - 29" |
| Efficiency: | 65% at 15 km/h in 700c-wheel |
| No-Load Power Input: | 0,5 W at 15 km/h in 700c-wheel |
| Magnets: | neodym iron boron, 26 poles |
| Connection: | 4,8 mm flat spades, 2-pin to connect without ground connection (special design without connectors) |
| Axle: | hollow axle Ø 10 mm, strain-hardened stainless steel, (Center Lock rotor mounting system licenses by Shimano: aluminium 7075 T6) |
| Bearings: | deep groove ball bearing 629 2RSH (SKF) |
| Hub Shell: | aluminium 6082 T6 |
| Colors: | silver polished, anodized silver, black or red |
| Sealing: | alloy dust shields, rubber lip seals and pressure compensation system |
| Spoke Drillings: | 28 (only ISO 6-bolt), 32, 36 40, 48 (tandem version with a larger flange) |
| Weight: | 440 g (ISO 6-bolt: 460 g, Center Lock rotor mounting system licenses by Shimano: 430 g) |
This Product was added to our catalogue on 01/07/2015.
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