North West Flat Tracker and TT specialist, Mark Williams rode this what is probably the last official BSA Flat Tracker made. BSA were on their deathbed but still represented in the AMA GNC. Williams rode this Track Master 441 Victor sleeved down to a 350cc to meet the rules of the time. He was very successful on it but couldn't save BSA all alone. When they folded the BSA quickly became a Triumph and was Norton Villiers Triumph Corp's factory Short Tracker.