Five-studs
Nov 04, 2020
2 minutes
Words: RICHARD ROSENTHAL
Photograph:
ROSENTHAL FAMILY ARCHIVE
Alongside JAP speedway engine development, specialists made frames, including speedway rider Alec Jackson, who was to later take over speedway engine production.
Most off-season during the early/mid 1930s, engine development work had two objectives – reliability and power. For example, over winter 1932/3, the cylinder head was modified, which, with other details, took measured
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