The Junior TT is a
motorcycle
A motorcycle (motorbike, bike, or trike (if three-wheeled)) is a two or three-wheeled motor vehicle steered by a handlebar. Motorcycle design varies greatly to suit a range of different purposes: long-distance travel, commuting, cruising ...
road race that takes place during the
Isle of Man TT
The Isle of Man TT or Tourist Trophy races are an annual motorcycle racing event run on the Isle of Man in May/June of most years since its inaugural race in 1907. The event is often called one of the most dangerous racing events in the world ...
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 motor-cycle 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.
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-stroke
Official Qualification Time
* 115% of the time set by the third fastest qualifier in the class.
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
Michael Dunlop (born 10 April 1989) is a Northern Irish professional motorcycle racer. Part of a motorcycle racing dynasty, Michael is the brother of the late William Dunlop, son of Robert and nephew of former World Champion Joey Dunlop.
He ...
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 Dean Harrison (born 24 January 1989) is an English professional motorcycle racer. He has won 3 Isle of Man TT Races, and has 26 podium finishes as of July 2023.
Harrison also competes in the Southern 100, Oliver's Mount, North West 200, and Ulst ...
during the 2018 600cc Supersport TT Race 2.
List of Junior/Supersport TT Winners
Race winners (riders)
Race winners (manufacturers)
Winners of Junior/Senior Double Isle of Man TT Races
References
See also
*
TT Zero
TT Zero – an electric motorsport event introduced for the 2010 Isle of Man TT races – replaced the similar TTXGP race as a 1-lap (37.733 miles) circuit of the Snaefell Mountain Course. The TT Zero event as an officially sanctioned Isle of M ...
*
Lightweight TT
The Lightweight TT is a motorcycle road race that is a part of the Isle of Man TT festival - an annual motorcycle event traditionally held over the last week of May and first week of June.
History
The Lightweight class was first present at th ...
*
Ultra-Lightweight TT
The Ultra-Lightweight TT was a motorcycle road race that took place during the Isle of Man TT festival, an annual event at the end of May and beginning of June. Between 1951 and 1974 this race was part of the Grand Prix motorcycle racing season at ...
*
Sidecar TT
The Sidecar TT is a motorcycle-with-sidecar road race competition held over two legs which takes place during the Isle of Man TT festival, an annual event at the end of May and beginning of June. Between 1954 and 1976 this race was part of the Gr ...
*
Superstock TT
*
Senior TT
The Senior Tourist Trophy is a motorcycle road race that takes place during the Isle of Man TT festival, an annual event traditionally held over the last week in May and the first week in June. The Senior TT is the Blue Riband event of the festi ...
{{Isle of Man TT