Class Name Licence Age Restrictions
50cc Standard Y1 6-9 50cc, no power mods, Auto
50cc Modified Y1 6-9 50 cc 2T, 100cc 4T no mods to 4T, Auto
100cc Standard Y2

8-13

100cc 2T, 150cc 4T, manufacturer build,  Auto
100cc Modified Y2

8-13

100cc 2T, 150cc 4T, Auto
100cc Geared Air Cooled Y2

9-13

119cc 2T, 179cc 4T, air cooled
100cc Geared Water Cooled Y2

9-13

119cc 2T, 179cc 4T, water cooled
150cc Open Geared Y3

 

11-16
119cc 2T, 179cc 4T, race with 250s
250 Standard Y3

11-16

200cc 2T, 250cc 4T, no power mods
250 Modified Y3

11-16

239cc 2T, 299cc 4T, air cooled production only
250 Open Y4 11-17 239cc 2T, 299cc 4T, air cooled production only
Novice Adult 15+ 450cc, only by prior agreement with club
Adult Support Adult 15+ 550cc 2T 2 cyl, 800cc 4T 1 cyl
Over 40s Adult 40+ 550cc 2T 2 cyl, 800cc 4T 1 cyl
Adult Championship Adult 15+ 550cc 2T 2 cyl, 800cc 4T 1 cyl
NETT Sidecars Adult 15+ 350-1000cc 2T, 750cc 2T

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