|
CLASS
|
AGE REQUIREMENT
|
ENGINE SIZE
|
ENGINE TYPE
|
MACHINE SPECIFICATIONS
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50 Beginner
|
4-8 yrs.
|
0-51cc
|
2 stroke
4 stroke
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Any bike that is in accordance to the engine size
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|
50 Oil Injected
|
4-6 yrs.
|
0-51cc
|
4 stroke
|
Yamaha PW 50; KTM Mini Adventure; Cobra CX50OI
|
|
50 (4-6)
|
4-6 yrs.
|
0-51cc
|
2 stroke
4 stroke
|
Single-speed automatic. Maximum wheelbase 36". Maximum wheel size 10". Maximum seat height 24". No larger that 14mm round intake.
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|
50 (7-8)
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7-8 yrs.
|
0-51cc
|
2 stroke
4 stroke
|
Single-speed automatic. Maximum wheelbase 41". Maximum wheel size 12". Retrofitted 12" wheels are permitted. No larger than 19mm round intake.
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|
50 Open
|
4-8 yrs.
|
0-51cc
|
2 stroke
4 stroke
|
Single-speed automatic. Maximum wheelbase 41". Maximum wheel size 12". Retrofitted 12" wheels are permitted. No larger than 19mm round intake.
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65 Beginner
|
6-11 yrs.
|
59cc – 65cc
|
2 stroke
|
Minimum wheel size 10”. Maximum front wheel 14”.
Maximum (adjusted length) wheelbase 45”.
Maximum wheelbase must maintain manufacturers specifications.
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|
65 (6-8)
|
6-8 yrs.
|
59cc – 65cc
|
2 stroke
|
Minimum wheel size 10”. Maximum front wheel 14”.
Maximum (adjusted length) wheelbase 45”.
Maximum wheelbase must maintain manufacturers specifications.
|
|
65 (9-11)
|
9-11 yrs.
|
59cc – 65cc
|
2 stroke
|
Minimum wheel size 10”. Maximum front wheel 14”.
Maximum (adjusted length) wheelbase 45”.
Maximum wheelbase must maintain manufacturers specifications.
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|
65 Open
|
6-11 yrs.
|
59cc – 65 cc
|
2 stroke
|
Minimum wheel size 10”. Maximum front wheel 14”.
Maximum (adjusted length) wheelbase 45”.
Maximum wheelbase must maintain manufacturers specifications.
|
|
85 Beginner
|
7-16 yrs.
|
79cc – 85cc
|
2 stroke
|
Maximum front wheel 17”. Minimum rear wheel 12”.
Maximum rear wheel 16”. Maximum wheelbase 51”.
|
|
85 (7-11)
|
7-11 yrs.
|
79cc – 85cc
|
2 stroke
|
Maximum front wheel 17”. Minimum rear wheel 12”.
Maximum rear wheel 16”. Maximum wheelbase 51”.
|
|
85 (12-16)
|
12-16 yrs.
|
79cc – 85cc
|
2 stroke
|
Maximum front wheel 17”. Minimum rear wheel 12”.
Maximum rear wheel 16”. Maximum wheelbase 51”.
|
|
Supermini
|
12-16 yrs.
|
85cc – 112cc
75cc – 150cc
|
2 stroke
4 stroke
|
Maximum wheelbase 52”. Maximum front wheel size 19”.
Maximum rear wheel size 16”.
|
|
Girls
|
7-13 yrs.
|
65cc – 105cc
|
2 stroke
4 stroke
|
Maximum wheelbase 52”. Maximum front wheel size 19”.
Maximum rear wheel size 16”.
|
|
Women
|
14+ yrs.
|
99cc – 250cc
|
2 stroke
4 stroke
|
Maximum wheelbase 52”. Maximum front wheel size 19”.
Maximum rear wheel size 16”.
|
|
Schoolboy Jr.
|
12-16 yrs.
|
86cc – 125cc
75cc – 150cc
|
2 stroke
4 stroke
|
Minimum front wheel size 19”. Minimum rear wheel size 16”.
|
|
Schoolboy Sr.
|
14-16 yrs.
|
|
2 stroke
4 stroke
|
Minimum wheelbase 53”. No minicycles or Superminis
|
|
Open Outlaw
|
12+ yrs.
|
|
2 stroke
4 stroke
|
|
|
Fourstroke
|
12 + yrs.
|
250cc +
|
4 stroke
|
|
|
250 Beginner
|
12 + yrs.
|
125cc
126cc – 250cc
|
2 stroke
4 stroke
|
|
|
250 Novice
|
12 + yrs.
|
125cc
126cc – 250cc
|
2 stroke
4 stroke
|
|
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250 Intermediate
|
12 + yrs.
|
125cc
126cc – 250cc
|
2 stroke
4 stroke
|
|
|
450 Beginner
|
12 + yrs.
|
250cc
251cc – 450cc
|
2 stroke
4 stroke
|
|
|
450 Novice
|
12 + yrs.
|
250cc
251cc – 450cc
|
2 stroke
4 stroke
|
|
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450 Intermediate
|
12 + yrs.
|
250cc
251cc – 450cc
|
2 stroke
4 stroke
|
|
|
25+ A/B C/D
|
25+ yrs.
|
125cc +
250cc +
|
2 stroke
4stroke
|
|
|
30+ A/B C/D
|
30+ yrs.
|
125cc +
250cc +
|
2 stroke
4 stroke
|
|
|
40+ A/B C/D
|
40+ yrs.
|
125cc +
250cc +
|
2 stroke
4 stroke
|
|
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50+ A/B C/D
|
50+ yrs.
|
125cc +
250cc +
|
2 stroke
4 stroke
|
|
|
250 Pro
|
16+ yrs.
|
125cc
126cc – 250cc
|
2 stroke
4 stroke
|
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|
450 Pro
|
16+ yrs.
|
250cc
250cc – 450cc
|
2 stroke
4 stroke
|
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