[4] Williams trained in mechanical engineering and introduced via racing alloy wheels, an innovation which is commonplace on today's road bikes, and was also an early pioneer of solo-motorcycle disc brakes.

[5] He first entered the Isle of Man Manx Grand Prix in 1964 on a Norton[6] In 1965 he entered the Senior race on his Dunstall Norton Dominator 500 cc twin suffering con-rod breakage of the left cylinder when lying 3rd but scored a third place in Lightweight 250 cc[7][8] category riding an Orpin Greeves Silverstone.

[3] In early 1967, Williams marketed an engineering solution to enable a proprietary disc brake assembly produced and merchandised by Rickman Motorcycles to be fitted to Manx Norton and AJS 7R/Matchless G50 racing machines.

[20] The machine was designed as an integrated package with a Peel-type fairing incorporating handlebar blisters which helped to reduce the drag coefficient to 0.39.

[21][22] Williams was the standout performer for the British team at the 1973 Transatlantic Trophy match races aboard the John Player Norton.

[23] The Transatlantic Trophy match races pitted the best British riders against the top North American road racers on 750cc motorcycles in a six-race series in England.

[24] At the third round at Oulton Park, Williams claimed the first race victory after early leader, Art Baumann's Kawasaki developed transmission troubles.