Country: Great Britain
Engine: Air-cooled vertical twin 4-stroke
Ignition: Battery and coil
Power Rating: 34bhp @ 6,500rpm
Bore x Stroke: 68 x 82mm
Valves: Overhead, pushrod activated
Fuel System: Twin Amal 1-1/16-inch Monobloc carburetors
Suspension: Front Norton Roadholder telescopic forks, rear twin shock
Brakes: Front and rear drum
Top speed: 106mph
To make their products more attractive, Norton supplemented their traditional silver and black color schemes with some daring new colors. This "99" is finished in "Post Office red and Dove gray," with optional chrome fenders.
Twin carburetors, as on this machine and 9 to 1 high-compression pistons were optional equipment to increase performance. The Model 99 was regarded as to be the best combination of power and smoothness of the pre-Commando Norton twins.