JA Prestwich 500cc speedway bike. This bike came from Australia in approx 2003. It was taken off the track and stored. The frame is in its original nickel finish and is of Eric Langton design. Engine number JOS/H 78285. I believe this to be a 1951. Most recent previous owners were Rick Buckland, then Jason Bonsignore, (owner of 2 speedway tracks in upstate NY.) It at some point was converted to a Del-Orto carb. The bike starts and runs. Remember these speedway bikes are direct drive and have no brakes. In my opinion the bike should be left as is and not restored. It has a great look.