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The BSA A65 Star was a Birmingham Small Arms Company (BSA) motorcycle aimed at the US market for unit construction twins. As well as giving a clean look to the engine, with the pushrod passages part of the cylinder block casting, unit construction reduced the number of places oil could leak from. [ 3 ]
The BSA unit twins were a range of unit construction twin-cylinder motorcycles made by the Birmingham Small Arms Company (BSA) and aimed at the US market. A range of 500 cc (31 cu in), 650 cc (40 cu in) and 750 cc (46 cu in) twins were produced between 1962 and 1972, [1] but they were really developments of the older pre-unit A7/A10 model range with less weight. [2]
The BSA A65R Rocket was one of a series of unit construction twin cylinder Birmingham Small Arms Company (BSA) motorcycles made in the 1960s. A version branded as the A65 'Thunderbolt Rocket' was aimed at the US market. [2] The A65R Rocket was produced from 1964 but was stopped in 1965 when all development at BSA was halted by financial ...
BSA A65 may refer to a number of motorcycle models produced by the Birmingham Small Arms Company (BSA): BSA A65 Star; BSA A65 Rocket; BSA Hornet; BSA Lightning;
All BSA parallel twins were pushrod operated overhead valve machines. The A7 and A10 models were semi-unit construction until about 1953 and pre-unit construction thereafter. All A50, A65 and A70 models were unit construction.
Sharing many A65 cycle parts, the Lightning Rocket had a slimmer fuel tank and mudguards, with additional chrome. From 1965, the A65 was discontinued in the UK and the BSA A65L Lightning became the main BSA production twin. [1] BSA Lightning Rocket at the National Motorcycle Museum (UK)
WD CAT. ORD 9 List of all service parts. WD CAT. ORD 10 tool load, and supply guide; WD CAT. ORD 11 Ammunition; WD CAT. ORD 12 Obsolete general supplies; WD CAT. ORD 13 Parts common to two or more major items; WD CAT. ORD 14-1 Interchangeability lists for tanks, and vehicles of related chassis. WD CAT. ORD 14-2 Interchangeability list
The BSA Spitfire Hornet was a true racing motorcycle, with the A65 engine upgraded with high compression pistons and a performance cam. The gear ratios were altered for sprint acceleration and the brakes (the 8 inch model from the BSA Gold Star) were improved with special cooling fins. [2]