CLASSES
KIDS RACE FREE
Kid Classes
We take the next generation of racers very seriously. We want every child that wants to race to have the opportunity to have fun, learn and gain experience.
50cc,65cc,85cc,110’s, 70’s 90’s etc
Knobby tires allowed
Modern AM
0-249cc:
Two stroke or four stroke single or multi cylinder engines.
250 AMATEUR:
Two stroke or four stroke single or multi cylinder engines.
OPEN AMATEUR:
Two stroke or 4 stroke single or multi cylinder engines.
450 AMATEUR:
4 stroke single cylinder 450cc engines. NO PRO RIDERS ALLOWED
PRO AM: (50% payback class)
Two stroke or four stroke single or multi cylinder engines. NO PRO RIDERS ALLOWED
KNOBBY:
Bikes equipped with Knobby tires. MotoX/offroad etc
Mad Dawg/Mad Dawg Unlimited:
Front Knobby Ok (No Rear Knobby)
Woman’s:
Two stroke or 4 stroke single or multi cylinder engines.
Age Classes:
Modern and Vintage bikes
+30:
Two stroke or 4 stroke single or multi cylinder engines.
+40:
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.
Hooligan / Run what ya brung
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.
Vintage
Boardtrack: Teens-1928
1. No brakes.
2. No gearbox or clutch (if running, transmission must be locked in one gear).
3. Rolling start.
4. Wheels & Tires: 28 x 2 1/4 ribbed racing tires on clincher rims or 28 x 3 tires on clincher rims or 21 x 3
Avon-style ribben Speedmaster tires on 21 inch drop-center rims. Button tread or Non-Skid clincher
tires can also be used.
5. Handlebars must drop below the horizontal plane of the motorcycle.
Hand Shift: 1936-1951
1. No brakes and rigid frame.
2. Hand shift and foot clutch
BRAKELESS 250cc: THRU 1967
1. No brakes, no aftermarket swing arm frames.
2. 250cc short track and 1⁄2 mile machines.
3. Engines produced 1967 model year and before (examples: Triumph Cub, BSA C-15, Honda Hawk,
Bultaco Metisse).
4. Aftermarket rigid frames such as cates and sonic weld may be used.
Brakeless 500 – 750 cc: THRU 1967
1. No brakes and rigid frame.
2. Foot shift and hand clutch.
3. 750cc side valve, 500cc overhead valve.
250/360:
Two stroke or four stroke air cooled engines singles or twins.
70’s Singles: THRU 1979
Two stroke or four stroke single cylinder motors
PRO & AM 80’s Singles: THRU 1989
Two stroke or four stroke single cylinder motors
PRO & AM Vintage Twins: THRU 1989
Two stroke or four stroke multi cylinder motors.
Youth Vintage Class: Under 30 YO
Two stroke or four stroke multi cylinder motors.
Modern Pro
Pro Singles
Single cylinder, two or four stroke. 505cc Limit
OPEN PRO
Two stroke or four stroke single or multi cylinder engines. Open cc
PRO Twins
Two stroke or four stroke multi cylinder engines. Open cc