I used to have a Cycle Speedway bike at school in Stockport (circa 1975).
Forks straightened by putting them down a grid and heaving on the headstock and Westrick wheels.
I forget the gearing but it was bloody low and great for wheelies.
I never competed, I used to use it for school,they were just cool for about a year (and there was a Championship track near my house in the local park). The lack of brakes and a freewheel means I'm lucky to be here.
Cor Blimey!
It's still there, Look at those tight apexes, pays to be first to the apex I bet.