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In page AJW Summit:

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When AJW began production in 1927 the range included a standard 'sportster' with single-port cylinder heads and a twin-port version[1] but production was slow due to the hand built assembly and delays in obtaining the bought in components, including the frames and engines. Even in its best year, AJW only produced 250 motorcycles. In the great depression of the 1930s the market for luxury motorcycles was very limited and demand for the road going version slumped. The performance of the AJW Summit meant that despite the cost it remained popular with motorcycle racers, so the company stopped building roadsters to concentrate on developing the racing specification. This did not generate enough income, however, and production finally ended in 1931.[4]