Bikes: The JAP Long Four Speedway Engine

Speedway Workshop

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Italian Matchless
Post-WWII Singles
ARMA-Matchless

Royal Enfield J Series
80 Years of Evolution
The Enfield Bullet

Tojo Marama
Speedway Hero and the Twostroke V8
Galbusera

The 1933 JAP long four with Right Hand 12.5% Downdraught Carb.

First of Down Draught carb type - Open Valved and Double Feed Oil Pump.

Boxer Performance
Increased torque and peak power for BMW Twins.