The Junior TT is a motorcycle road race that takes place during the Isle of Man TT festival; an annual event at the end of May and beginning of June. Between 1949 and 1976 this race was part of the Grand Prix motorcycle racing season.
Engine capacity The 1911 Isle of Man TT was the first time the Junior TT race took place and was open to 300cc single-cylinder and 340cc twin cylinder motor-cycles and was contested over 5 laps of the new 37.5 mile Mountain Course. The first event on the new course was the Junior TT Race and was contested by 35 entrants. It was won by Percy J. Evans riding a Humber motorcycle in 3 hours, 37 minutes and 7 seconds at an average speed of 41.45 mph.
The 1912 event was the first to limit the Junior TT to only 350 cc machines and this engine capacity prevailed until 1994. YearsMaximum Engine Capacity1911300cc (Single cylinder) 340cc (Twin cylinder)1912 - 1976350cc1977 - 1994250cc1995 - 2004600cc2005 - Present600cc (Four cylinder) 675cc (Three cylinder) 955cc (Two cylinder)
Eligibility
Entrants Entrants must be in possession of a valid National Entrants or FIM Sponsors Licence for Road Racing.
Machines The 2012 specification for entries into the Junior TT race are defined as;- Any machine complying with the following specifications: Supersport TT: (Machines complying with the 2012 FIM Supersport Championships specifications) Over 400cc up to 600cc 4 cylinders 4-stroke Over 600cc up to 675cc 3 cylinders 4-stroke Over 600cc up to 750cc 2 cylinders 4-strokeInternational Tourist Trophy Regulations 2012 page 3/Appendix A page 34 ACU Events (Isle of Man) Limited (2012) Isle of Man Department of Economic Development
Official qualification time 115% of the time set by the third fastest qualifier in the class.International Tourist Trophy Regulations 2012 page 19 ACU Events (Isle of Man) Limited (2012) Isle of Man Department of Economic Development
Speed and lap records The lap record for the Junior TT is 17 minutes and 31.328 seconds, at an average speed of set by Michael Dunlop on lap 2 of the 2018 Isle of Man TT 600cc Supersport Junior TT Race 1. The race record for a four-lap Junior TT is 1 hour, 11 minutes and 28.059 seconds at an average race speed of set by Dean Harrison during the 2018 600cc Supersport TT Race 2.
List of Junior/Supersport TT winners
YearRiderManufacturerAverage race speed 1911 Percy J. Evans Humber41.45 mph 1912 W. Harry Bashall Douglas39.65 mph 1913 Hugh Mason NUT43.75 mph 1914 Eric Williams AJS45.58 mph 1915-1919Not held 1920 Cyril Williams AJS40.74 mph 1921 Eric Williams AJS52.21 mph 1922 Tom Sheard AJS54.75 mph 1923 Stanley Woods Cotton55.74 mph 1924 Kenneth Twemlow New Imperial55.678 mph 1925 Wal Handley Rex-Acme65.02 mph 1926 Alec Bennett Velocette66.704 mph 1927 Freddie Dixon HRD67.19 mph 1928 Alec Bennett Velocette68.65 mph 1929 Freddie Hicks Velocette69.71 mph 1930 Henry Tyrell-Smith Rudge71.08 mph 1931 Tim Hunt Norton73.94 mph 1932 Stanley Woods Norton77.16 mph 1933 Stanley Woods Norton78.08 mph 1934 Jimmie Guthrie Norton79.16 mph 1935 Jimmie Guthrie Norton79.14 mph 1936 Freddie Frith Norton80.14 mph 1937 Jimmie Guthrie Norton84.43 mph 1938 Stanley Woods Velocette84.08 mph 1939 Stanley Woods Velocette83.19 mph 1940-1946Not held 1947 Bob Foster Velocette80.311 mph 1948 Freddie Frith Velocette81.59 mph 1949 Freddie Frith Velocette83.15 mph 1950 Artie Bell Norton86.33 mph 1951 Geoff Duke Norton93.83 mph 1952 Geoff Duke Norton90.29 mph 1953 Ray Amm Norton90.52 mph 1954 Rod Coleman AJS91.51 mph 1955 Bill Lomas Moto Guzzi92.33 mph 1956 Ken Kavanagh Moto Guzzi89.29 mph 1957 Bob McIntyre Gilera94.99 mph 1958 John Surtees MV Agusta93.97 mph 1959 John Surtees MV Agusta95.38 mph 1960 John Hartle MV Agusta96.70 mph 1961 Phil Read Norton95.11 mph 1962 Mike Hailwood MV Agusta99.59 mph 1963 Jim Redman Honda94.91 mph 1964 Jim Redman Honda98.51 mph 1965 Jim Redman Honda100.72 mph 1966 Giacomo Agostini MV Agusta100.87 mph 1967 Mike Hailwood Honda104.68 mph 1968 Giacomo Agostini MV Agusta104.78 mph 1969 Giacomo Agostini MV Agusta101.81 mph 1970 Giacomo Agostini MV Agusta101.77 mph 1971 Tony Jefferies Yamsel89.91 mph 1972 Giacomo Agostini MV Agusta102.03 mph 1973 Tony Rutter Yamaha101.99 mph 1974 Tony Rutter Yamaha104.44 mph 1975 Charlie Williams Yamaha104.38 mph 1976 Chas Mortimer Yamaha106.78 mph 1977 Charlie Williams Yamaha99.62 mph 1978 Chas Mortimer Yamaha100.71 mph 1979 Charlie Williams Yamaha105.13 mph 1980 Charlie Williams Yamaha102.22 mph 1981 Steve Tonkin Armstrong106.21 mph 1982 Con Law Waddon105.32 mph 1983 Con Law EMC 108.09 mph 1984 Graeme McGregor EMC 109.57 mph 1985 Joey Dunlop Honda 109.91 mph 1986 Steve Cull Honda 109.62 mph 1987 Eddie Laycock EMC 108.52 mph 1988 Joey Dunlop Honda 111.87 mph 1989 Johnny Rea Honda 112.12 mph 1990 Ian Lougher Yamaha 115.16 mph 1991 Robert Dunlop Yamaha 114.89 mph 1992 Brian Reid Yamaha 115.13 mph 1993 Brian Reid Yamaha 115.14 mph 1994 Joey Dunlop Honda 114.67 mph 1995 Iain Duffus Honda 116.58 mph 1996 Phillip McCallen Honda 117.65 mph 1997 Ian Simpson Honda 118.41 mph 1998 Michael Rutter Honda 114.37 mph 1999 Jim Moodie Honda 118.11 mph 2000 David Jefferies Yamaha 119.33 mph 2001 Not held 2002 Jim Moodie Yamaha 119.22 mph 2003 Bruce Anstey Triumph 120.36 mph 2004 John McGuinness Yamaha 120.57 mph 2005 Ian Lougher Honda 120.928 mph Ryan Farquhar Kawasaki 120.627 mph 2006 John McGuinness Honda 122.264 mph 2007 Ian Hutchinson Honda 123.225 mph 2008 Steve Plater Yamaha 122.338 mph Bruce Anstey Suzuki 123.041 mph 2009 Ian Hutchinson Honda 124.141 mph Michael Dunlop Yamaha 121.416 mph 2010 Ian Hutchinson Honda 124.677 mph Ian Hutchinson Honda 125.161 mph 2011 Bruce Anstey Honda 124.232 mph Gary Johnson Honda 123.819 mph 2012 Bruce Anstey Honda 124.160 mph Michael Dunlop Yamaha 123.543 mph 2013 Michael Dunlop Honda 125.182 mph Michael Dunlop Honda 125.997 mph 2014 Gary Johnson Triumph 125.078 mph Michael Dunlop Honda 124.526 mph 2015 Ian Hutchinson Yamaha 125.451 mph Ian Hutchinson Yamaha 125.803 mph 2016 Ian Hutchinson Yamaha 126.445 mph Ian Hutchinson Yamaha 125.905 mph 2017 Michael Dunlop Yamaha 124.368 mphSupersport TT 2 Cancelled due to weather conditions 2018 Michael Dunlop Honda 126.027 mph Dean Harrison Kawasaki 126.703 mph 2019 Lee Johnston Yamaha 126.449 mph Peter Hickman Triumph 127.671 mph2022 Michael DunlopYamaha
Race winners (riders) Rider Wins Ian Hutchinson, Michael Dunlop 8Giacomo Agostini, Stanley Woods 5 Bruce Anstey, Charlie Williams 4 Joey Dunlop, Freddie Frith, Jimmie Guthrie, Jim Redman 3 Alec Bennett, Brian Reid, Geoff Duke, Mike Hailwood, Gary Johnson, Con Law, Ian Lougher, John McGuinness, Chas Mortimer, Jim Moodie, John Surtees, Eric Williams 2 Rod Coleman, Percy J. Evans, Ryan Farquhar, Peter Hickman, David Jefferies, Lee Johnston, Ken Kavanagh, Dave Leach, Bill Lomas, Phil Mellor, Steve Plater, Michael Rutter, T. M. Sheard, H. G. Tyrell Smith 1
Race winners (manufacturers) MarqueWins Honda 26 Yamaha 25 Norton 12 MV Agusta 9 Velocette 8 AJS 5 EMC, Triumph3 Moto Guzzi, Kawasaki2 Armstrong, Cotton, Douglas, Gilera, Humber, HRD, New Imperial, NUT, Rex-Acme, Rudge-Whitworth, Suzuki, Waddon, Yamsel1
Winners of Junior/Senior Double Isle of Man TT races Year Name Make of motorcycle 1931 Tim Hunt Norton 1932/33 Stanley Woods Norton 1934 Jimmie Guthrie Norton 1951 Geoff Duke Norton 1953 Ray Amm Norton 1957 Bob McIntyre Gilera 1958/59 John Surtees MV Agusta 1967 Mike Hailwood Honda 1968–70, 1972 Giacomo Agostini MV Agusta 1985, 1988 Joey Dunlop Honda 1996 Phillip McCallen Honda 2000 David Jefferies Yamaha 2006 John McGuinness Honda 2010 Ian Hutchinson Honda 2014 Michael Dunlop Honda / BMW 2017 Michael Dunlop Yamaha / Suzuki
References
See also TT Zero Lightweight TT Ultra-Lightweight TT Sidecar TT Superstock TT Senior TT