Our Duomatic kit for the Brompton is a light and simple way to get a minimalist bike – no cables to the back, it has two speeds you select by backpedaling slightly. It also eliminates rim wear – if you backpedal a bit more, it activates the internal coaster brake.
The kit will fit to any Brompton with the braze-on for a derailleur – so anything made within the last 10 years. It’s simple to fit, just remove the original back wheel, brake and all cabling, fit the new wheel and tensioner, and a couple of fittings, and you’re done.
The Duomatic hub is available in silver, black, blue, gold or red.