| AJS S3 V-twin | |
| Manufacturer: | AJS |
| Production: | 1931 |
| Engine: | 496 cc 50 degree air-cooled side-valve V-twin |
| Top Speed: | 65mph |
| Transmission: | Shaft primary drive with chain final drive |
| Dry Weight: | 160kg (350lb) |
The AJS S3 V-twin is a British motorcycle designed and built by the Wolverhampton, England company A. J. Stevens & Co. Ltd. Launched in 1931, the AJS S3 was a 496 cc transverse V-twin tourer with shaft primary drive (but chain final drive), three-speed bevel-driven gearbox and alloy cylinder heads. The 50 degree V configuration was effective for air cooling and with a tank top 'dashboard' was conceived as a luxury cruiser. It had been expensive to develop and at £65 was more expensive than the AJS of the same year,[1] so the S3 did not sell in large numbers, and by the end of 1931 AJS had gone into liquidation and been taken over by Matchless motorcycles who discontinued production.[2]