[rcign]

The crank and one cylinder are/were used by D&B, BME, and Spehar twins......One cylinder has the spark plug at a funny angle, about 25 degrees down, so D&B and Keith used the other cylinder on both sides..The odd cylinder can be rotated 180 if the locator pins are changed, but the spark plug still looks funny...The stock carb manifold has the carb parallel to the cylinders, so most conversions make a new vertical carb insulator block, some use Homelite 4 petal reeds like in the Fox twins... .They run about like a G62, but very smooth.....Last one I bid on went for $275 to someone else....
Keith makes some of his twins with bigger bore cylinders, using bronze bushings in the pistons to match the wrist pins to the crank..I think the BMEs over 95ccs use proprietary cranks and rods....