Uploaded October 2020 | Updated September 2026, 2 weeks ago

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In this video Robbie goes over the process of converting a Brompton bicycle into electric drive using one of our geared SOFP motor front hub kits. The Brompton bike has a special 75mm wide fork with a tiny 8mm axle and requires a specially designed hub motor and torque arm solution, and the folding nature of the frame requires care around the cable routing process. For more information on this kit see our info page here:
ebikes.ca/product-info/grin-kits/brompton-kit.html

The use of a torque or PAS sensor on the kit is optional and the installation on that is covered in the following videos:
youtube.com/watch?v=ieEwzZdrR4o