Cinder track and sliding developed in the 20s in Newcastle and Maitland and spread from that. Early bikes used Rudge, Douglas, AJS American Crocker, the Harley 350 Pea shooter and later the soon to become ubiquitous JAP engine from Tottenham London and designed by Val Page and installed in various frames till the Mid 60's when ESSO Jawa displaced them. Speedway bikes have NO brakes or gearboxes.. Versions of grass track and oval track have One and two and a four speed gearbox of which you only use the top 2. None of them have a kick starter and they all pretty well ran on Methanol with a total loss oil system and CASTOR oil that exited the engine case by a Leather flap valve on the bottom of the engine. Nev