“Just as much at home threading its way through slow traffic with two up or ‘Thunderbolting’ up a steep grade”. That is how Motorcyclist magazine described the 1968 BSA A65 Thunderbolt. Some may disagree but I think the A65T was probably BSA’s best twin ever.
The A65 twin was built from 1962 to ’72 in various versions, the high performance Lightning and Spitfire models and the ‘touring’ model Thunderbolt. I rode a ’67 Lightning for years and loved it, but I also rode a Triumph Trophy, which I tended to ride more often (much to my step fathers dismay…it was his bike).
The thing about the Trophy was that it was actually easier to ride than the Lightning. The Lightning was faster no doubt, but the Trophy had better low end power that came on earlier in the powerband, which for me, made it easier to ride fast on the canyon roads near home. The BSA Thunderbolt feels the same way.
When comparing the BSA Thunderbolt to the Lightning, it’s ‘the same girl just wearing a different dress’. Same motor (pretty much), same chassis, same brakes but it’s the small details that made the difference, mainly the change to the single carburetor. The bike was tuned to cruise comfortably at 70+mph all day and when your testosterone level is up so is the Thunderbolt…topping ‘the ton’ was easy. With the slight changes to the motor, the Thunderbolt didn’t vibrate as badly as the other BSA twins, nice for touring.
In 1968 BSA made some really good changes to the Thunderbolt. A new, longer kickstart lever took some effort out of the starting ritual but the big deal was switching from the Amal Monobloc carb to the Concentric carb. The Concentric was much less prone to flooding and combined with the longer kickstarter, the Thunderbolt became much easier to start…hot or cold.
BSA made some really good improvements to the motorcycles but had one glaring problem…poor workmanship. And truthfully, at this period in time, this is what killed the British motorcycle industry. That aside, the Thunderbolt is a wonderful motorbike. It is smooth, comfortable, fast enough for fun, excellent handling (of course, it’s a BSA!) and absolutely beautiful. As Cycle Magazine said, “One of the best designed motorcycles we have had the pleasure of testing”.
I found a beautiful 1968 Thunderbolt on ebay this morning that with some new tyres (english spelling) is ready to go. The motorbike has just 1763 miles on the clock, it is a bike that has aged quite gracefully and honestly is one of the better values I have found lately.
Click on the pics below for more pictures and info. And as BSA once said, “Move up to a mans motorcycle, move up to BSA”