There is evidence that many motorcyclists use only one brake, usually that on the rear wheel. This technique seriously limits the deceleration available to the vehicle, particularly in emergencies. Combined braking systems in which the brakes of both wheels are actuated by a single control have been available for many years but not used in large numbers. Such systems ensure the use of both brakes by virtue of their design but problems related to distribution of effort have remained unresolved. The addition of antilock devices to a Combined brake system is discussed in the paper, along with results obtained from braking tests using a sample of riders.