National Flat Track CLASSES
KIDS CLASSES
We take the next generation of racers very seriously. We want every child who wants to race to have the opportunity to have fun, learn, and gain experience.
50cc Chain Drive
50cc Shaft Drive
65cc -Ages 7-11
52cc-65cc 2 stroke
52cc-90cc 4 stroke
85cc - Ages 9-15
66cc-85cc 2 stroke
75cc-125cc 4 stroke
Supermini- Ages 9-15
66cc-85cc 2 stroke
75cc-125cc 4 stroke
modern amateur classes
Open Novice- 250cc +
Beginner class
250 AM Ages 12+
450 AM Ages 14+
Open Am- 19" wheels minimum
Womans Open
Knobby Open
Mad Dawg
-stock
-unlimited
Vintage Classes
Vintage Pro 600
Vintage Pro Twins
Vintage AM Twins
Vintage AM Singles
70's Vintage
80's Vintage
Youth Vintage
Age classes
Modern & Vintage Motorcycles
30+
Two-stroke or 4 stroke single or multi-cylinder engines.
50+
Two-stroke or 4 stroke single or multi-cylinder engines.
50+
Two-stroke or four-stroke single or multi-cylinder engines.
60+
Two-stroke or four-stroke single or multi-cylinder engines.
70+
Two-stroke or four-stroke single or multi-cylinder engines.
80+
Two-stroke or four-stroke single or multi-cylinder engines.
Hooligan
Hooligan racing has become one of the hottest classes in motorcycle racing. Xtreem Flat Track will offer this grassroots/run what ya brung free for all, whether you’re a beginner or a hooligan veteran.
Two or four stroke multi cylinder stock street bike production frame.
No geometry changes allowed that are not bolt on.
No fabrication allowed to change neck angle, no moving stock swingarm pivot location on frame, no removal of subframe or changing stock upper shock mount location(s), unless it is a bolt on modification. Aftermarket swingarms are allowed.
All lights/glass must be taped or removed.
RUN WHAT YA BRUNG
OPEN STREET BIKE, BAGGER, CAFE RACER, SPORTBIKE, CRUISER ETC All lights must be taped.
OPEN EXPERT CLASSES
EXPERT SINGLES
Single cylinder, two or four-stroke. 505cc Limit
EXPERT TWINS
OPEN EXPERT
Two-stroke or four-stroke multi-cylinder engines. Open cc
SUNDAY MOTORS
Sunday 125 STOCK
Sunday 147
Stock
Modified
Sunday 187
Stock
Modified
Speedway
Speedway Class
Quads
Open Pro Quad
Open AM Quad
Youth Quad
Pullstart MiniBike
short wheelbase
long wheelbase