| 1 | 1957 - 1963 | A10 Super Rocket |
| 2 | 1967 - 1970 | A65T Thunderbolt |
| 3 | 1955-1957 | A7 Shooting Star |
| 1946 - 1950 | Rigid A7 | £2500 - £3000 |
| 1951 - 1954 | Star Twin/Golden Flash | £1750 - £2500 |
| 1955 - on | A7/A10 | £1750 - £2500 |
| 1955 - 1962 | Shooting Star | £2000 - £3000 |
| 1955 - 1957 | Road Rocket | £2500 - £3500 |
| 1957 - 1963 | Super Rocket | £2250 - £3000 |
| 1962 - 1963 | Rocket Gold Star | £6000 - £8250 |
| 1962 - 1965 | A50/A65 Star | £1250 - £2000 |
| 1963 - 1965 | A65 Rocket/Lightning | £2000 - £3000 |
| 1965 - 1968 | Spitfire | £4000 - £6000 |
| 1965 - 1970 | Royal Star/Thunderbolt | £1500 - £2500 |
| 1971 - 1973 | Oil-in-frame | £1250 - £2250 |
One advantage of the semi and pre-unit twins is magneto ignition - free from reliance on battery condition. Superb styling, which reached its peak in the mid Fifties, typifies the pre-unit models. The Y shaped timing cover of the later Hopwood designed twins has a memorable symmetry with just the right amount of cylinder and head finning to balance the power unit's bottom end.
In contrast, the semi unit twins appear skimpily finned, with the gearbox snuggling too closely under the curves of the engine casings. The plunger sprung frame on these models can be skittish on corners, whereas the later swinging arm chassis for both pre unit and unit construction versions provides excellent handling.
The unit construction BSAs, particularly the later models, benefit from the refinement of 12volt electrics and better brakes. But they struggle to rival their predecessors for style, often appearing bulky, although some sports models, such as the MkII Spitfire with twin GP2 carburettors ooze excitement.
WebOntwerp: DuymKLIK