Here's a really nice looking 1947 Sunbeam S7, a postwar model that looks as good or better than many of those other big name bikes of the same era. The engine is a 24 horsepower, 500cc vertical twin sitting longitudinally in the frame which allows shaft drive. The shaft drive turns a worm gear which is not something you see every day, The rear wheel has a simple plunger … [Read more...]