2026 Season
Class List
Every class we run at Mecosta MX, with age brackets and bike requirements so you know exactly where you line up.
Riders age as of January 1st. Your age on that date determines class eligibility for the whole season.
28 race classes and 5 pit bike classes
Race Classes
28 shown
50 Jr.
4-6- Bike
- 0-51cc 2-stroke / 0-51cc 4-stroke / max 1kw ebike
- Notes
- Max. wheel size 10in. Can't run Sr. E3 allowed.
50 Sr.
7-8- Bike
- 0-51cc 2-stroke / 0-51cc 4-stroke / max 1.5kw ebike
- Notes
- Max. wheel size 12in. Can't run Jr. E5 allowed.
50 SS
4-8- Bike
- 0-51cc 2-stroke single speed
- Notes
- PW, TTR 50cc, KTM E2, CRF 50 (no shifters).
50 Open
4-8- Bike
- 0-51cc 2-stroke & 4-stroke
- Notes
- All 2/3/5 e-bikes allowed.
Trail Jr
4-11- Bike
- 0-110cc 4-stroke
Trail Sr
12-15- Bike
- Up to 150cc 4-stroke trail bike
65 Jr.
7-9- Bike
- 59cc-65cc 2-stroke
65 Sr.
10-11- Bike
- 59cc-65cc 2-stroke
65 Open
7-11- Bike
- 59cc-65cc 2-stroke
85 Jr
9-11- Bike
- 79cc-85cc 2-stroke
- Notes
- Max. front 17" / max rear 14".
85 Sr
12-15- Bike
- 79cc-85cc 2-stroke / 75-150 4-stroke
- Notes
- Max. front 19" / max rear 16".
Mini C
9-15- Bike
- 79cc-85cc 2-stroke / 75-150 4-stroke
- Notes
- Not eligible to race 85 Jr. or 85 Sr. Beginners (C) only.
Mini Open
9-15- Bike
- 79cc-112cc 2-stroke or 75cc-150cc 4-stroke
- Notes
- Max. front 19" / max rear 16".
Schoolboy
12-17- Bike
- 122cc-250cc 2-stroke or 126cc-250cc 4-stroke
- Notes
- No "A" riders. Super-mini allowed.
Girls
9-15- Bike
- 79cc-112cc 2-stroke or 75cc-150cc 4-stroke
Women
12 & up- Bike
- 99cc-250cc
- Notes
- Super-mini allowed.
125 B/C
12 & up- Bike
- 122cc-125cc 2-stroke
Open A/B
14 & up- Bike
- 122cc-Open
- Notes
- Cash for (A) or dealer check (B).
Open B/C
14 & up- Bike
- 122cc-Open
- Notes
- No "A" or "D" riders.
250 C
12 & up- Bike
- 122cc-250cc "C Riders"
- Notes
- No "A" or "B" or "D" riders.
Open C
12 & up- Bike
- 122cc-250cc "C Riders"
- Notes
- No "A" or "B" or "D" riders.
Open Beginner D
12 & up- Bike
- 122cc-Open "Beginner Riders"
- Notes
- No "A" or "B" or "C" riders.
14 Plus
14 & up- Bike
- 122cc-Open
25 Plus
25 & up- Bike
- 122cc-Open
35 Plus
35 & up- Bike
- 122cc-Open
45 Plus
45 & up- Bike
- 122cc-Open
55 Plus
55 & up- Bike
- 122cc-Open
Vet Beginner
25 & up- Bike
- 122cc-Open
- Notes
- "C" riders only.
Pit Bike Classes
5 shown
Bone Stock 110
12 & up- Bike
- Up to 110cc
- Notes
- 14" front / 12" rear max. No mods except handlebars.
Mod 110
12 & up- Bike
- Up to 110cc
- Notes
- 14" front / 12" rear max.
Trail Bike
12 & up- Bike
- Up to 140cc
- Notes
- Max. front 19" / max rear 16".
Vet Pitbike
25 & up- Bike
- Up to 110cc
- Notes
- 14" front / 12" rear max. E-bikes allowed.
Open Outlaw
12 & up- Bike
- Run what ya brung
- Notes
- Max. front 19" / max rear 16". E-bikes allowed.
Racing October 17 & 18, 2026
Our october race weekend runs these classes, plus a pit bike race.
Classes and requirements can change. Check the Mecosta MX Facebook page for the latest updates before race day.