The 1975 Isle of Man TT was the sixth round of the 1975 Grand Prix motorcycle racing season. It took place on the weekend of 4–6 June 1975 at the Snaefell Mountain Course.
500cc classification Pos. Rider Team Manufacturer Time/Retired Points 1 Mick Grant Boyer Team Kawasaki Kawasaki 2:15'27.600 15 2 John Williams Yamaha +31.200 12 3 Chas Mortimer Sarome Racing Yamaha +2'55.200 10 4 Billie Guthrie Yamaha +2'58.600 8 5 Steve Tonkin McVeigh-Yamaha +4'05.600 6 6 Geoff Barry EC Oakley Yamsel +4'07.200 5 7 Charlie Williams Yamaha +4'10.400 4 8 Tony Rutter Yamaha +4'19.000 3 9 Helmut Kassner Yamaha +4'57.400 2 10 Les Kenny Renstar-Yamaha +4'58.200 1 11 Martyn Sharpe Barton Motors Yamaha +6'16.200 12 Bill Simpson Yamaha +8'18.400 13 David Hughes Matchless +8'36.000 14 John Weeden Yamaha +8'42.400 15 Selwyn Griffiths Matchless +9'14.200 16 Roger Sutcliffe Suzuki +9'28.400 17 Neil Tuxworth Yamaha +9'44.800 18 Paul Cott Yamaha +9'57.400 19 Derek Chatterton Chatterton Motors Yamaha +10'26.000 20 Barry Ditchburn Boyer Team Kawasaki Kawasaki +10'50.800 21 Tom Herron Matchless +11'11.600 22 Bernard Murray Albion Street Motors Yamaha +11'50.000 23 Tom Newell Norton +12'26.000 24 Henry McEwan Bill Robertson Motors Yamaha +13'29.800 25 James Scott Yamaha +13'40.600 26 Malcolm Lucas Fred Hanks Motorcycles Norton +15'00.000 27 Hans-Otto Butenuth Yamaha +17'15.200 28 Frank Rutter Yamaha +17'32.400 29 Bo Granath Husqvarna +18'34.000 30 Donal Cormican Yamaha +19'29.200 31 Fred Walton Velocette +21'26.600 32 Walter Dawson Seeley +21'52.400 33 Ernie Coates Yamaha +27'38.800 34 James Ashton Yamaha +28'19.800 35 Malcolm Moffat Yamaha +29'29.800 36 Derek Loan Barton Motors Suzuki +28'06.600 37 Tom Robinson Yamaha +30'40.800 38 Chris Neve Yamaha +32'37.400 39 Gerry Mateer Yamaha +33'52.400 Ret John Taylor Yamaha Retired Ret Alex George Yamaha Retired Ret Roger Nichols Yamaha Retired Ret Abe Alexander Yamsel Retired Ret Bill Rae Yamaha Retired Ret Abe Walsh Ducati Retired Ret Alan North Yamaha Retired Ret Bill Henderson Yamaha Retired Ret Brian Warburton Suzuki Retired Ret Graham Waring Yamaha Retired Ret Jan Kostwinder Yamaha Retired Ret Horst Gluck BMW Retired Ret Hartley Kerner Honda Retired Ret Donald Grant Norton Retired Ret Bernie Toleman Suzuki Retired Ret Bill Robertson Suzuki Retired Ret Mick Poxon Suzuki Retired Ret Barry Randle Yamaha Retired Ret Bill Smith Yamaha Retired Ret Bob Heath Yamaha Retired Ret Brian Moses Yamaha Retired Ret Dennis Trollope Yamaha Retired Ret Derek Tierney Yamaha Retired Ret Ian Richards Yamaha Retired Ret Ken Huggett Yamaha Retired Ret Martin Read Yamaha Retired Ret Mick Burns Yamaha Retired Ret Mick Chatterton Yamaha Retired Ret Norman Dunn Yamaha Retired Ret Percy Tait Yamaha Retired Ret Peter Grove Yamaha Retired Ret Phil Carpenter Yamaha Retired Ret Phil Gurner Yamaha Retired Ret Alan Rogers Yamsel Retired Ret Denis Gallagher Yamsel Retired Sources:
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