BSA Y13
The BSA Y13 was a twin, four-stroke cross / motocross motorcycle produced between 1936 and 1938. Claimed horsepower was 19.04 HP (14.2 KW) @ 4800 RPM.
Engine
The engine was a air cooled twin, four-stroke. A 71.0mm bore x 94.0mm stroke result in a displacement of just 748.0 cubic centimeters. Fuel was supplied via a overhead valves (ohv).
Drive
The final drive was via chain. Power was moderated via the multiplate dry.
Chassis
It came with a 4.00-18 front tire and a 4.00-18 rear tire. Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The front suspension was a quick adjustable shock-streering damper while the rear was equiped with a none-rigid. The Y13 was fitted with a 4.49 Gallon (17.00 Liters) fuel tank. The wheelbase was 54.02 inches (1372 mm) long.