BSA wanted to enlarge their 650 twin to a 750 to compete in the open class in AMA Class C racing. But the rules required that the races bikes be based on an actual production bike that the public ...
1969 BSA A65 1969 BSA A65 Lightning 1969 BSA A65 LIGHTNING The 650 Lightning was BSA’s top-line bike, and meant to do battle with the market-dominating Triumph Bonneville and had twin carbs just like ...