While commuter bicycles can generally get by with a rear-wheel-only coaster brake, mountain and cyclocross bikes require both front and rear brakes – along with the hand levers used to activate them. Although this doesn’t pose much of a challenge for most riders, it does for those who only have the use of one hand. One possible solution is to use a system that joins both brake cables to one common end, which then goes into a conventional lever. Another solution, however, is to use Paul Component Engineering’s dual-cable Duplex lever.
Read the full article: Duplex lever lets disabled cyclists activate both brakes with one hand