Rocket Gold Star
The BSA Rocket Gold Star is a
British motorcycle that marked the final stage
of development of the BSA A10 twins. With a
specially tuned A10 Super Rocket engine in the
well proven BSA Gold Star single frame, BSA
created a very fast bike (for the time) with
good handling fast bike that became 'classic'.
Surviving models are in such demand today that
'fakes' (using Super Rocket parts) are sold
Launched in February 1962 the
total BSA Rocket Gold Star production was 1584
bikes, of which 272 were off-road scramblers.
The Super Rocket compression was increased from
8.25 to 9:1 with a BSA Spitfire camshaft and
an Amal Monobloc carburettor gave 46bhp as standard.
Options such as Siamese exhausts and a close-ratio
RRT2 gearbox could increase this to 50bhp -
and add 30% to the price.  Nine specials
were made for export to California and one was
fitted with a sidecar by Watsonian for the Earls
Court Show in October 1962.
The main reason for the demise
of the popular Rocket Gold Star was the emergence
of new unit construction successors, which meant
that production ended in 1963.
The '''BSA Spitfire''' was a British motorcycle
launched in 1966. One of the first BSA's to
have 12-volt electrics, the Spitfire was also
one of the first ''street racers'' with two
large-bore Amal GP carburettors, complete with
The Spitfire had a new twin-downtube steel
frame and new Girling shocks. A 190mm front
drum brake improved braking and and lightweight
alloy rims reduced the weight to 174kg.
The 1968 MkIV Spitfire was the last made. Amal's
new Concentric carburettors were combined with
twin-leading-shoe front brakes and independently
adjustable Lucas ignition points for easier
starting. Engine power output was increased
to 53 bhp.