51cc Air Cooled (4-8) Ltd* (OIL INJECTED, Air Cooled 2 Strokes and 4 Strokes 50s only, no water cooled) Max WB 36”, max wheels 10”, max seat height 22”, No larger than 12mm round intake)

51cc (4-6) Ltd* (0cc-51cc) 2-Stk and 4-Stk, single speed auto, max WB 36”, Max wheels 10”, max seat height 24”, No larger than 14mm round intake.

51cc (7-8) Ltd* (0cc-51cc) 2-Stk and 4-Stk, single speed auto, max WB 41”, Max wheels 12”, No larger than 19mm round intake.

Mini-E (4-6) Ltd* (Battery 1kwh., Max wheelbase 41″. Max wheel size 12″ Max seat height 25” OEM parts must be used.)

Mini-E (7-8) Ltd* (Battery 1kwh., Max wheelbase 41″. Max wheel size 12″ Max seat height 25” OEM parts must be used.)

51cc Combined Open (4-8) Ltd* (0cc-51cc 2S and 4S)

65cc (7-9) (59-65cc) 2-Stk

65cc (10-11) (59-65cc) 2-Stk

65cc Combined Open (7-11) (59-65cc) 2-Stk

65/85 Beginner (7-11) (Boys and girls, Never Raced Before 8/10/2024)

Girls (11 - 16) 79-112cc 2-Stk/75-150cc 4-Stk Max. Wheels: Front 19"; Rear 16" Must be 12 to ride Supermini

85cc (9-11) (79-85cc, no big wheels, max wheels 17F/16R)

Mini Sr (12-15) (79-85cc 2-Stk/150cc 4-Stk, max wheels 19F/16R)

85cc COMBINED OPEN 9-11 (150 4-S ok, no big wheels, max wheels 17F/16R)

85cc COMBINED OPEN 12-15 (150 4-S ok, big wheels OK, max wheels 19F/16R)

85/150 Beginner (12-15) (big wheels OK, max wheels 19F/16R) Never Raced Before 8/10/2024)

Supermini (12-16) (79cc-112cc 2-Stk/150cc 4-Stk, max wheels 19F, 16R)

Women’s Amateur (12+) 99cc - 250cc, 2 or 4-Stroke

WMX Women’s (25+) (122-Open cc)

Beginner Open (122cc and Up, 2 stroke or 4 stroke, Never Raced Before 8/10/2024)

Schoolboy 1 (12-17) 86-125cc 2-Stroke/75-150cc 4-Stroke Min. Wheels: Front 19"; Rear 16"

Schoolboy 2 (12-17) 122-250cc, Must be 14 to race 250cc

Collegeboy (18-24) (122 and up, 2-Stroke or 4-Stroke)

125 (12-17) 122cc – 125cc, two-stroke only

250 C Jr. (12-17) (122-250 2-Stk, 250 4-Stk) Must be 14 to race 250cc

250 C (122-250 2 stroke, 250 4 stroke)

250 B (122-250 2 stroke, 250 4 stroke)

Open Pro ($) (122cc – open) 200% payback, (100% if 6 riders or less); paying ½ the class

450 C (122 and Up, 2 stroke or 4 stroke)

450 B (122 and Up, 2 stroke or 4 stroke)

Vet Beginner (25+) Never raced before 08/10/2024

25+ Amateur (122-Open cc)

25+ A ($) (122-Open cc) Payout 100%, paying ½ the class

30+ C/D (122-Open cc)

30+ A/B (122-Open cc)

35+ Open (122-Open cc)

40+ C/D (122-Open cc)

40+ A/B (122-Open cc)

50+ Open (122-Open cc)

55+ Open (122-Open cc)

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ADDITIONAL NOTES ON CLASS STRUCTURE:

• Please visit the AMA Racing Rulebook PAGE 19 C. Limited Class Equipment Standards for a detailed description for the “Limited” classes AMA-Competition-Rulebook.pdf (americanmotorcyclist.com)

• Must be 14 years old to practice or race on a 250cc motorcycle

• Must be 16 years old to practice or race on a 251cc+ motorcycle

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