Joule™ 3 Dynamo Hub

Category:
  • 73% generator efficiency — one of the most efficient
  • Lightest version weighs only 356 g
  • One of the lowest drag of all dynamo hubs
  • Ultra-compact, super-lightweight design
  • German StVZO compliant (6V, 3W)
  • Available for disc brakes (32-hole, 100 mm OLD)
  • Available in silver or black
Joule™ 3 Dynamo Hub

The Joule 3 currently is the lightest, most efficient bicycle dynamo hub on the market. It can be built up to create super-light dynamo wheels and its patented magnet configuration yields barely noticeable drag. Polishing, laser etching, and a precision machined flange pattern give high performance in a beautiful small package. Available in disc and non-disc brake versions. Winner of a 2012 Eurobike Award.

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