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Peter Williams (born 29 September 1945 in Nottingham England) is a former motorcycle road racer who enjoyed success when competing at many levels on home short-circuits, International and Grand Prix races.〔(【引用サイトリンク】title=Peter Williams career statistics )〕 He raced many times on the Isle of Man TT course from 1966 to 1973. His father was Jack Williams who ran the Associated Motor Cycles (AMC) race department. Peter trained in mechanical engineering and introduced via racing an innovation which is commonplace on today's road bikes, alloy wheels, and was an early pioneer of disc brakes. He raced in the era of Giacomo Agostini, Barry Sheene, Mick Grant, Percy Tait, Tony Jefferies, Paul Smart, Dave Potter and John Cooper. ==Riding career== Williams started his racing on UK short-circuits in 1964 and won the 250 cc class of the 1964 Thruxton 500 race on an AJS model 14 CSR partnered by Tony Wood.〔''Motor Cycle'', 25 June 1964. p.122 ''Thruxton 500 race report and result'' and p.7a ''Associated Motor Cycles full page factory advertisement'' "''250cc class. 1st AJS 14 CSR. Riders: Peter Williams and Tony Wood. Entered by: Arter Bros Ltd.''" Accessed 2014-01-21〕 He first entered the Isle of Man Manx Grand Prix in 1964 on a Norton〔''Motor Cycle'', 27 August 1964. ''Manx Grand Prix Entry List'' Accessed 2013-06-28〕 In 1965 he entered the Senior race on his Dunstall Norton Dominator 500cc twin suffering con-rod breakage of the left cylinder when lying 3rd but scored a third place in Lightweight 250cc〔''Motor Cycle'', 16 September 1965. ''Manx Grand Prix, Senior Race report'' and ''Lightweight Results'' Accessed 2013-06-28〕〔''Motor Cycle'', 23 September 1965. ''Scarborough road race report.'' "''500 cc Race results, Second, P.J.Williams (Dunstall Dominator)''". Accessed and added 2014-10-22〕 category riding an ''Orpin Greeves Silverstone.''〔''Motor Cycle'', 9 September 1965. ''Manx grand Prix Practising'' Accessed 2013-06-28〕 Williams entered selected Grand Prix races from 1966. He also regularly competed in TT races from 1966, scoring one 1st place and seven 2nd places.〔() Official TT Results ''Competitor Profile: Peter Williams'' Retrieved 2013-06-02〕 He won the 1966 North West 200 500cc race in Northern Ireland on a Matchless, and placed 2nd in the 250cc class on a Greeves Silverstone〔() Official NW200 Results ''1966 Results'' Retrieved 2013-06-02〕 His best Grand Prix season was in 1967 when he finished in fourth place in the 500cc world championship on a Matchless motorcycle.〔 He had a long-standing relationship with sponsor Tom Arter,〔〔''Motorcyclist Illustrated'', April 1968, p.48 Arter Bros advert ''Arter Bros. Ltd. AJS - Francis Barnett - Matchless - Greeves Dover Road, Barham, Kent Tel. Barham 356''. Accessed and added 2015-03-11〕 riding his Arter-AJS (350cc) and Arter-Matchless (500cc) machines which were later developed with special lightweight frames, disc brakes and six-spoke, solid-cast (non wire-spoked) Elektron wheels〔''Motorcycle Mechanics'', February 1968, ''Full Chat'' by John Day: "''On Tom Arter's AJS and Matchless specials, he will set a new style, for one of his machines will be fitted with wheels built with only six spokes. They will be one-piece cast magnesium units similar to those fitted to racing cars. One might imagine that such bulky looking "cart" wheels would be heavy... Peter will fit them to his 500, which will also have disc brakes front and rear.''" Accessed 2013-07-20〕 dubbed "cart wheels"〔 and ''artillery wheels'' by the UK press.〔''Motorcycle Sport'', July 1979, p.350 ''Wheels and Wheels'' by Ted Davis (ex-Vincent Chief Tester) "''After 100 years we are back to 'artillery' wheels''". Accessed and added 2014-06-23〕 In 1969 Williams and Arter started a new project with a prototype Weslake twin cylinder 500cc engine to replace the 1950s Matchless G50 which was abandoned as the engine project failed〔() www.sintich.com ''Four valves per cylinder'' Retrieved 2013-06-01〕 As a Norton employee from 1969,〔''Motorcycle Mechanics'', October 1969, p.22 ''Full Chat'' by John Day. "''The cast-magnesium wheels which Peter Williams is developing and which he tested for the first time at the Hutchinson 100, suggest that he will have any number of new and revolutionary ideas to impart in his new job as project engineer with Norton Villiers''" Accessed 2014-02-09〕 Williams entered larger-capacity races on Norton Commando twins. He teamed with Charley Sanby to win the 1969 Thruxton 500 endurance race〔() Southampton & District Motor Cycle Club. Official Site. ''Race result 1969''. Retrieved 2013-08-15〕 and was placed second in the 750 cc class Production TT race in 1970.〔() Official TT Results ''1970 750cc Production race results''. Retrieved 2014-01-21〕 Williams won his only world championship race in 1971 in the 350cc Ulster Grand Prix,〔 and also won the 1973 Isle of Man F750 TT on a John Player Norton Special with a semi-monocoque frame, in the role of team designer/rider. 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.〔''Motor Cyclist Illustrated'', September 1973, p.2 full page colour advert, ''From John Player Norton: The Norton Twins. "The unique semi-monococque construction gives the Norton the advantage of less weight, improved ground clearance and better banking angles than other, ordinary bikes. Even the blunt fairing was designed to reduce the drag coefficient to a remarkable 0.39''". Accessed and added 2015-01-20〕〔(【引用サイトリンク】title=Motorcycle Technology - Future Perfect - Up To Speed )〕 His racing career was cut short by injuries received in an accident at Oulton Park on August Bank Holiday 1974. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Peter Williams (motorcyclist)」の詳細全文を読む スポンサード リンク
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