The Junior TT is a
motorcycle
A motorcycle (motorbike, bike; uni (if one-wheeled); trike (if three-wheeled); quad (if four-wheeled)) is a lightweight private 1-to-2 passenger personal motor vehicle Steering, steered by a Motorcycle handlebar, handlebar from a saddle-style ...
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 and June of most years since its inaugural race in 1907 Isle of Man TT, 1907. The event begins on the UK Spring Bank Holiday at the e ...
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.
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 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
Race winners (riders)
Race winners (manufacturers)
Winners of Junior/Senior Double Isle of Man TT races
References
See also
*
TT Zero
TT Zero was 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 ...
*
Lightweight TT
The Supertwin 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. Prior to the 2022 edition of the Isle of Man TT, TT, the ...
*
Ultra-Lightweight TT
*
Sidecar TT
The Sidecar TT is a motorcycle-with-sidecar road racing, 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 p ...
*
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 wiktionary:blue ribbon, blue r ...
{{Isle of Man TT