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This is a special order front wheel conversion kit for Brompton folding bicycles based around a 350-500 watt Crysatlyte SAW motor laced in a 16″ ETRTO 349 rim. Motor axle is made for the narrow Brompton front fork dropout spacing that is 75mm versus the standard 100mm. It fits in the Brompton fork perfectly with no modifications. A pair of torque arms mate with the dropout’s anti-rotation hole to prevent spin-out.
The 20A controller mounts on a custom bracket behind the fork and does not interfere with the folding. Package includes an advanced system with a V3 Cycle Analyst and either a magnet ring PAS sensor for automatic assist modes. Also uses waterproof Higo Z910 plug for motor cable and silent sine wave controller.
The 36V lithium battery is special order made to fit in the front Brompton bag that generally is purchased when the bike was purchased. Complete system is approximately $1K depending on battery configuration. To discuss outfitting your Brompton contact Doug at 707-439-3179 and/or [email protected]