BSA A65: the 650 cc twins of the 1960s

BSA

1963 BSA A65 650 twin
A 1963 BSA A65 650 unit twin. Photo by Ken from London, England, CC BY 2.0 via Wikimedia Commons.

BSA A65 was the name given to not one motorcycle but a whole family of 650 cc twins produced by the Birmingham Small Arms Company. The A65 designation covers roadsters, sporting models, off-road machines and racing derivatives.

BSA A65 at a glance

BSA A65 models
Maker Birmingham Small Arms Company (BSA)
Designation A65, a family of 650 cc twins
A65 Star listed among the A65 models
A65 Rocket listed among the A65 models
Hornet listed among the A65 models
Lightning listed among the A65 models
Lightning Clubman listed among the A65 models
Lightning Rocket a separate A65 model
Spitfire listed among the A65 models
Thunderbolt listed among the A65 models

Based on one source. The English Wikipedia article on the A65 is a short list of the models that carried the name, so this page stays short and does not invent specifications.

History of the BSA A65

The A65 name was used by BSA for a number of motorcycles rather than for a single machine. The models that carried it were the A65 Star, the A65 Rocket, the Hornet, the Lightning, the Lightning Clubman, the Lightning Rocket, the Spitfire and the Thunderbolt.

1972 BSA A65 Lightning
A 1972 BSA A65 Lightning, one of the A65 models. Photo by Geni, CC BY-SA 4.0 via Wikimedia Commons.

Within that group the names point in different directions: the Star and the Rocket belong to the roadster end of the range, the Hornet, Spitfire and Lightning to the sporting machines, and the Thunderbolt to the touring side. The Lightning Clubman and Lightning Rocket are further variants of the Lightning line.

Each of these models has its own history, and several of them are covered in separate articles on this site. What the A65 badge means in practice is a 650 cc BSA twin of the 1960s, with the exact character depending on which of the eight names follows it.

Design and features

  • One designation, many models: the A65 badge covered roadsters, sports machines and off-road derivatives.
  • Named derivatives: Star, Rocket, Hornet, Lightning and Thunderbolt each stood for a different emphasis within the family.
  • Clubman and Rocket variants: the Lightning line alone produced a Clubman and a Lightning Rocket version.

BSA A65 versions

  • A65 Star: the roadster that opened the family.
  • A65 Rocket: a further roadster model under the A65 name.
  • Hornet: a sporting derivative of the 650 twin.
  • Lightning, Lightning Clubman and Lightning Rocket: three versions of the best-known sporting line.
  • Spitfire and Thunderbolt: the scrambler-influenced and touring ends of the range.

Individual A65 models have their own pages, among them the Lightning and the Spitfire. The A65 family replaced the pre-unit A10 twins; more models are in the BSA collection.

Video: BSA A65 Thunderbolt 650cc

Video by TheClassicMotorcycle on YouTube.

Sources