Hub Dynamos for Fatbikes

Fatbikes need electricity, too! Electricity to power lights when crossing a frozen Alaska lake or power for charging a cell phone on your comfortable city bike.

Suitable hub dynamos with extra long axles are available at SON. There are two versions for standard quick release mount with different rotor positions. For extremely rough usage there even is a 15 mm thru axle version with 150 mm width.

made in Tübingen
5 years guarantee

SON 28 135 VR

  • Fatbike hub dynamo with front wheel rotor position
  • for rotors with robust 6-bolt mount
32 hole 313219
black anodized
RRP in D 279,00 €

Weight: 530 g

Width: 135 mm

Axle diameter: 9 mm

Rotor position: 10.4 mm

Flange spacing: 68 mm, symmetrical

6 Volt / 3 Watts conforming to German legal regulations

SON 28 135

  • Fatbike hub dynamo with rear wheel rotor position
  • for rotors with robust 6-bolt mount
32 hole 313218
black anodized
RRP in D 279,00 €
32 hole 313298
silver anodized
RRP in D 279,00 €

Weight: 530 g

Width: 135 mm

Axle diameter: 10 mm

Rotor position: 15.3 mm

Flange spacing: 68 mm, symmetrical

6 Volt / 3 Watts conforming to German legal regulations

SON 28 15 150

  • Fatbike hub dynamo for 15 mm thru axle
  • for rotors with robust 6-bolt mount
32 hole 373210
black anodized
RRP in D 339,00 €

Weight: 530 g

Width: 150 mm

Flange spacing: 82 mm, symmetrical

6 Volt / 3 Watts conforming to German legal regulations

  • Optimized Generator

    The claw-pole generator has its coil in the centre. Sheet metal parts are made with elaborate workmanship. Thus unrivalled low no-load lossses are achieved.

  • Pressure Compensation System

    Best possible protection against water ingress is realised by the unique pressure compensation system.

  • High-Quality Bearings

    SON hubs are long-life and maintenance-free due to high-end bearings sealed on both sides from SKF.

  • Precise Spoke Holes

    Precise spoke holes with large countersinks are a must for loadable wheels. This is why it will be sufficient to true the wheel only once.

  • Reliable Wiring

    As connections robust 4.8 mm spade connectors are used. They make a safe connection, when professionally crimped onto SON coaxial cable.