Developed by the Special Weapons Division.
650cc BSA Type A10 twin, rear-mounted, 4-speed gearbox, combination chain and shaft drive to rear-wheels.
16" diameter tires.
Max Speed: 50 mph
L: 8' 9"
W: 1' 8"
H: 2' 4"
W: 6 1/4 cwt
(Quoted dimensions are folded, for unfolded see 3-view)
Developed version with larger wheels and mudguards, performance was not as good as original.