1963 BSA A10
Pre-Unit 650 Twin
1963 BSA A10 SUPER ROCKET
1963 BSA A10 SUPER ROCKET
The Super Rocket was launched in 1957 with the introduction of a new alloy cylinder head and the addition of an Amal TT carburetor. In 1961 a new “357” high-lift racing cam was added. 1963 was the final year (a partial year) of A10 production as they ramped up production of the new unit-construction 650 A65, which started in late 1962, with over a year of overlapping production. With both bikes sitting side-by-side in the showroom, the old and the new, it must have been disheartening when BSA realized that the old bikes were selling better than the new ones. The 1963 BSA A10 Super Rocket was the last of the A10s, and represents the pinnacle of BSA’s pre-unit bikes.
1963 BSA A10 SPECIFICATIONS
|
Engine type Displacement Bore & Stroke Compression Carburetor Engine output Primary drive Clutch Final drive Gearbox Ratios, overall: 1st, Bottom 2nd 3rd 4th, Top Wheelbase Seat height Ground clearance Suspension, front Suspension, rear Brakes, front Brakes, rear Tires, front Tires, rear Fuel capacity Curb weight |
Air-cooled OHV vertical twin 646cc 70mm X 84mm 8.3:1 1- Amal Monobloc (TT) 42 hp @ 6,000 rpm 1/2″ X .305 single-row chain Multi-plate, wet 5/8″ X 3/8″ chain BSA constant-mesh 4-speed, foot shift 11.68:1 7.96:1 5.48:1 4.53:1 56.0″ 30.0″, unladen 6.0″, unladen telescopic forks, 2-way damping swing arm, 2 hydraulic dampers 8.0″ SLS drum 7.0″ SLS drum 3.25″ x 19″ 3.50″ x 19″ 4.0 gal 439 lbs |