By ’61, the 650 was running a high-lift “357” camshaft from the Spitfire and an improved ... rather than a single carb like the 650 Thunderbolt. These all used BSA’s A65 unit engine ...

VINTAGE - 1905-1934 Due to the rarity of these years and models of BSA, pricing data is still being collected. BSA production ceased in 1973. It is not usual to find a BSA motorcycle titled and ...

Insure your 1971 BSA for just $75/year.* #1 insurer: 1 out of 3 insured riders choose Progressive. Savings: We offer plenty of discounts, and rates start at just $75/year. OEM parts in repairs: We use ...