1952 BSA A10 Golden Flash Bobber. Built about 6 years ago and used as a weekend Bar Hopper. Original Frame and matching 650CC engine. Head was modified for more flow and Stainless steel Valves were added. Hardened Valve seats for unleaded fuel. Heavy Duty Norton clutch and Belt drive primary for reliability. Bored .040 over. Magneto ignition with electronically regulated voltage regulator. Everything was rebuilt approximately 1500 miles ago.Shipping Worldwide!