Schmidt SON 29 S hub dynamo

The new hub dynamo from SON with straight-pull lacing, disc side and connection side tangential. The dynamo for high-end road and gravel bikes and anyone who wants one.

Your dream wheel with the SON 29 S hub dynamo.

Ask us for a bespoke quote. We’ll build your dream wheelset, perfectly hand-laced. We use exclusively DT Swiss spokes. Over the last few decades – ever since we started building wheels – these spokes have proven to be by far the most durable.

Schmidt SON 29 S hub dynamo technical specifications:

• Electrical output: 6V / 3W according to 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: via switch in headlight housing
• Axle: Hollow axle made of cold-hardened, stainless steel
• Bearing: Deep groove ball bearing 629 2RSH
• Seal: Gap seal, sealing washers and pressure equalisation system
• Hub sleeve: Aluminium 6082
• Axle: Hollow axle made of cold-work hardened, stainless steel
• For 12x100 mm thru-axle mounting
• Spoke mounting: tangential on disc side and radial on connection side.
• Bolt circle diameter: Disc side tangential 72 mm, connection side tangential 42 mm
• Scope of delivery: Schmidt’s original hub dynamo
• Recommended lamp: Schmidt SON Edelux

SON 29 S disc 6-hole

The new SON 29 S: slim, light, efficient. The straight-pull dynamo. Thanks to its optimised design, it delivers 6V/3W even at low speeds and meets StVZO requirements, including for 29-inch wheels. Ideal for high-performance charging electronics. The brake disc side is laced in a cross pattern and the connection side in a radial pattern. The 24-hole version has 16 left and 8 right spokes, the 32-hole version has 16 left and 16 right spokes. The SON 29 S comes fitted as standard with a coaxial socket for the SON coaxial plug.

Integrated coaxial socket

The standard version has an integrated coaxial socket for the SON coaxial plug. The coaxial adapter enables a convenient and secure connection to SON hub dynamos. The coaxial plug allows the headlight cable to be easily connected and disconnected when fitting or removing the wheel. Self-contacting is also available.

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