BSA’s pre-unit twin twin was released in late 1946 for ... rather than a single carb like the 650 Thunderbolt. These all used BSA’s A65 unit engine — the transmission was incorporated ...

With it’s twin carbs, it was BSA’s equivalent of Triumph’s Bonneville. As BSA pared down its dizzying array of 650 models, it came down to two roadsters, the Lightning, seen here, and the single-carb ...

If plans stay on schedule – which they rarely do – we’re looking at a global debut of the BSA 650 Twin at the 2021 EICMA show in Milan, Italy – though that news may be more speculation, as the ...

If the Lightning and Thunderbolt names are aimed at the more premium end of the market, the Bantam name is aimed at the smaller-capacity and more accessible end of the spectrum. The BSA Bantam of ...