Biologic Joule™ 3 Dynamo Hub 24" Comp Wheel (Front)

Power When You Need It


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  • 73% generator efficiency — one of the most efficient
  • One of the lowest drag of all available dynamo hubs
  • Built and trued by hand
  • Butted spokes are light but strong
  • Double-walled rims for stiffness and strength
  • German StVZO compliant (3W, 6V)
  • Description
  • Technical Details
  • Reviews
  • Description

    The Joule 3 dynamo hub 24” rim set lets you generate electricity to power your lights or charge devices on your bike while riding. The Joule 3, winner of a 2012 Eurobike Award, is one of the lightest, most efficient bicycle dynamo hubs on the market, which means more power generated at a given speed. The patented magnet configuration yields barely noticeable drag while a polished, laser etched, and precision-machined flange pattern present high performance in a beautiful, small package.

  • Technical Details
    Color(s) Black
    Dimensions n/a
    Weight  853 g (w/o skewer)
    Load Capacity n/a
    Volume Capacity n/a
    Compatible Bikes
    Compatibility Checker
    Compatible Items Valo™ 2 Light
    Material n/a
  • Reviews

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