Schmidt SON 28 hub dynamo

Now also available as a disc version with a 6-hole brake disc mount, the new SON 28 is similar in design and appearance to the SONdelux. In the standard version, the flange spacing and bearing spacing have been increased by 12 mm and 10 mm respectively compared to the SONdelux. Compared to the classic SON 28 model from 2000 to 2011, no-load losses have been reduced by approx. 15 per cent and the weight by 140 g.

Son 28 Dynamo:

The SON, Schmidt’s original 28-inch hub dynamo, has been the standard for high-quality, fail-safe bicycle lighting for years and, as a result of its design, remains unmatched even by new products from much larger companies. The secret lies in its gearless construction using high-quality materials and the adherence to tight tolerances, which is likely only achievable through handcrafting by a dedicated small team. The dynamo is switched off electrically only. Thanks to optimisation, the no-load losses when switched off amount to just 1 watt and are imperceptible even to the most sensitive cyclists whilst riding.

Schmidt SON 28 Hub Dynamo Technical Specifications:

• Electrical output: 6V / 3W in accordance with StVZO Approval: ~~~ K 179
• Permitted wheel sizes: 16–29 inches
• Efficiency: 65 per cent at 15 km/h Idle power consumption: 0.5 watts at 15 km/h
• Magnetic rotor: Neodymium-iron-boron, 26-pole
• Connection: 4.8 mm flat plug, two-pin, potential-free
• Cabling: Coaxial cable, PVC-free, 3 mm
• On/off switch: Switch in headlight housing
• Axle: Hollow axle made of cold-work hardened, stainless steel
• Bearing: Deep groove ball bearing 629 2RSH
• Seal: Gap seal, sealing washers and pressure equalisation system
• Hub sleeve: Aluminium 6082
• Scope of delivery: Schmidt’s original hub dynamo and clamping axle with hex socket

Your custom wheel with the Son 28 hub dynamo.

Ask us for a bespoke quote. We’ll build your dream wheel, perfectly hand-trued, with Mavic, DT Swiss, Notubes, eThirteen or Syntace rims. We use exclusively DT Swiss spokes. Over the last few decades – ever since we started building wheels – these spokes have proven themselves to be by far the most durable.

Herstellerinformation: SON, Aixer Straße 44, 72072 Tübingen, Germany, https://nabendynamo.de