The BSA A7 is a motorcycle by the British company Birmingham Small Arms Company.

It was sold from 1946 to 1962 in several variants and was the first parallel twin of BSA. She was one of the pre -unit models, ie the engine and transmission were housed in separate enclosures.

The Japanese manufacturer Meguro, which later became the motorcycle division of Kawasaki emerged, brought in 1959 with the model K1 a replica of BSA A7 to the market. The design of the 2011 Kawasaki W800 appeared inspired by the BSA A7.