The BSA Thunderbolt, despite the aggressive, sporty name, was designed to be a touring bike from the Birmingham Small Arms company. Powered by the traditional 650cc air cooled twin with a single Amal carb, the Thunderbolt had evolved to minimize vibrations found from previous BSA Twins. This allowed for sustained 70 mph travel in comfort for the first time. In road tests, this bike was also able to ‘do the ton’, as the Brits loved to call 100 mph.
This Thunderbolt has just 5,635 miles and has been with the current seller for ‘many years’. He’s had the motor balanced and the carb modified with a stainless sleeve. Find this BSA Thunderbolt for sale in Commerce Township, Michigan with bidding up to $3,350 and the reserve not yet met