Originally Posted by
chagzuki
I've never used a drum brake; would there be any negative consequences of installing one on the rear of a Brompton such as ease of disconnecting the cable for wheel removal, or fitting the brake arm bits neatly inside the rear frame?
First of all it is a space problem. Drum brake hubs tend to be not as narrow as a B at the back so you`d need to widen or get a new rear triangle.
Disconnecting cable should be no problem, it is about learning how to do it and getting used to doing it before you really need to do it- in the dark and rain.
There are some "quick release" options where you slide the brake arm innside a clip instead of atatching it with a nut. Not sure if it fits and can be used on a B. If not I have some times used a sprung washer and a wingnut to atatch the clip to reduce the amount of tools needed. Brake wire detatches and atatches without tools.
The Smut Pedaller: Sturmey Archer XL-FDD & X-RD3 review
http://greenspeed-trikes.com/support...ke-truing.html
Scroll down for info about drum brake for B front wheel.