CLASS LIST & SPECIFICATIONS 

COMX 2026 Bike  Classes

Open A,B,C : No cc limit. Ages 12 & up

 

250 A, B, C :  125cc – 250cc limit 2-strokes and 4-strokes, Minimum Wheel Size Front 21in. Rear 18in.

 

250 JR 125cc – 250cc limit 2-strokes and 4-strokes, Minimum Wheel Size Front 21in. Rear 18in. ages 12 - 17

 

Schoolboy 125cc – 250cc 4-stroke limit, 125cc – 150cc 2-stroke limit, Minimum Wheel Size 19in. Rear 16in. ages 12 – 17.

 

Collegeboy 14-24 Open CC limit, Minimum Wheel Size Front 21in. Rear 18in. ages 14 – 24.

 

Vet 30+ B/C Open CC limit, Minimum Wheel Size Front 21in. Rear 18in.

 

Vet 40+ Open CC limit, Minimum Wheel Size Front 21in. Rear 18in.

 

Vet 50+ Open CC limit, Min. Wheel Size Front 21in. Rear 18in.

 

Master 60+ Open CC limit, Minimum Wheel Size Front 21in. Rear 18in. Must be or over age 60.

 

125 2-Stroke 125cc limit 2-strokes, Minimum Wheel Size Front 21in. Rear 18in. Must be or over age 12

 

Women 100cc – Open cc Minimum Wheel Size Front 21in. Rear 18in. 

 

50cc Beginner Any 50cc bike or Mini E-Bike (no balance bikes) Must be or between age 4 – 8.

 

50cc Shaft Drive 50cc Shaft Driven 2-stroke, Maximum Wheel Size Front 10in. Rear 10in. Must be ages 4-6.

 

50cc JR 50cc Chain Driven 2-stroke, 50cc Shaft Driven 2-stroke, Maximum Wheel Size Front 10in. Rear 10in. Must be or between  ages 4-6.

 

50cc SR 50cc Chain Driven 2-stroke, Maximum Wheel Size Front 12in. Rear 10in. Must be ages 6-8.

 

50cc Open 50cc Chain Driven 2-stroke, Maximum Wheel Size Front 12in. Rear 10in. Must be ages 4-8.

 

STACYC A,B,C 3 - 8

 

Mini E-Bike Max 2KW Must be ages 4 – 8.

 

65cc open. Any 65cc bike Must be age 7 – 11

 

65cc JR 65cc 2-stroke, Maximum Wheel Size Front 14in. Rear 12in. Must be ages 7-9.

 

65cc SR 65cc 2-stroke, Maximum Wheel Size Front 14in. Rear 12in. Must be ages 9-11.

 

85cc JR 85cc 2-stroke or 150cc 4-stroke, Maximum Wheel Size Front 17in. Rear 14in. Must be or between AMA ages 9-12.

 

85cc SR 85cc 2-Stroke or 150cc 4-stroke, Maximum Wheel Size Front 19in. Rear 16in. Must be or between AMA ages 13-15.

 

85cc Open 85cc 2-Stroke or 150cc 4-stroke, Maximum Wheel Size Front 19in. Rear 16in. 12 - 16

 

Supermini 85cc – 112cc 2-Stroke or 150cc 4-stroke, Maximum Wheel Size Front 19in. Rear 16in. Must be 12-16

 

2026 COMX ATV  Classes:

 

ATV 50cc  Must be between  4– 8.

 

ATV 70 50cc – 70cc ATV, Must be between 6 – 11.

 

ATV 90 70cc – 90cc ATV or 125cc 4-stroke, Must be between 8 – 13.

 

ATV Supermini 70cc – 105cc 2-Stroke, 75cc – 150cc 4-stroke, Must be between 11 – 15.

 

ATV Schoolboy 90cc – 200cc 2-Stroke, 75cc – 350cc 4-stroke, Must be between AMA ages 12 – 15.

 

ATV Open 250cc – Open cc, Must be 12 or older

 

ATV Vet +30, 40, 50 . Open cc

 

Atv Master 60+ Open CC. 

 

ATV  A, B, C  450cc  Must be 15 or older