BSA Spitfire
The BSA Spitfire is a high-performance BSA motorcycle made from 1966 to 1968 with model designations of MkII, MkIII and MkIV. Announced at the Brighton motorcycle show held during September 1965, it was based on the earlier BSA Lightning with a power-upgrade achieved by higher compression-ratio 10.5:1 pistons and two large-bore Amal GP carburettors with velocity stacks it was one of the first BSAs to have 12-volt electrics. At introduction in 1966, it was the fastest standard BSA ever produced and the fastest standard motorcycle tested by Motor Cycle with a best run at 123 mph and average of 119.2 mph The Spitfire was used for travelling Marshalls' course duties at the 1967 Isle of Man TT races.
BSA Spitfire MkIV | |
| Manufacturer | BSA Motorcycles Ltd |
|---|---|
| Parent company | Birmingham Small Arms Company |
| Predecessor | A65L Lightning |
| Engine | 654 cc (39.9 cu in) air cooled four stroke, parallel twin, OHV, 2 valves per cylinder, 2 Amal 10GP2 carburettors, five pints of oil |
| Power | 54 bhp (40 kW) (claimed) @ 6900 rpm |
| Transmission | 4 Speed, chain |
| Suspension | BSA telescopic front fork with two-way damping, Girling rear shock absorbers with three-position spring adjustment |
| Brakes | 190mm (7.5 inches) front, 180mm (7 inches) rear |
| Wheelbase | 56 inches |
| Fuel capacity | 4 gallons (2 in the US export version) |
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