Race Order & Classes

Moto

Classes

1

Evolution 200, Pre ’78

2

Pre ’75 +30, +40, +50

3

Vintage 90's, Vintage 80's Open

4

Pre ’75 125, Pre '75 Modified, Women, Junior

5 ACR Modern Novice, Vintage 80's 0-200

6

GP Class

7

Pre-75 250, Pre-75 Open

8

Evolution 201-Open

9

Mini-bike

10

ACR Modern Intermediate/Expert

Class Descriptions

Class

Description

+30

Riders 30 years and older on any 1974 or earlier machine

+40

Riders 40 years and older on any 1974 or earlier machine

+50

Riders 50 years and older on any 1974 or earlier machine

Pre ’75 125

100 - 125 cc 2-stroke, 100 - 250 cc 4-stroke machines through 1974 and like design

Pre ’75 250

126 - 250 cc machines through 1974 and like design

Pre ’75 Open

251 - open cc machines through 1974 and like design

Pre ‘78

Open cc machines 1975 – 1977 and like design

Evolution 200

100 - 200 cc air cooled, drum brake and non-linkage suspension

Evolution Open

201 - open cc air cooled, drum brake and non-linkage suspension

GP Classes Extra laps in these classes.  No ability levels. To ride this class, riders must also be entered in one or more other ACR classes. Bike eligibility for each GP division is determined by displacement, not engine type (2-stroke, 4-stroke) i.e; no 250f machines in the GP125 class, no 450f machines in the GP250 class.  There are three GP classes as follows:
GP 125 For 125cc machines only.
GP 250 For 126-250cc machines only.
GP Open For 251-Open cc machines only.
Pre '75 Modified 100 - open cc machines through 1974 and like design. No travel limits. Any period modifications allowed provided all parts were available in 1974
Vintage 80's Classes Machines 1980 - 1989, period modifications allowed, like design rule does not apply.  There are two Vintage 80's classes as follows:
Vintage 80's 0-200 100-200cc machines only.
Vintage 80's 201-Open 201-Open cc machines only.
Vintage 90's All bikes made from 1990 - 1998. All period modifications are allowed. As in the Vintage Eighties Class, like-design machines are not allowed, just 1990-98 machines.

ACR Modern

125 - open cc machines through current model year. To ride this class, riders must also be entered in one or more vintage classes.

Women

Riding any 85cc and up machine.

Junior

Riders 12-15 years of age with an ACR parent/guardian and an air-cooled, drum brake, non-linkage 125cc machine

Mini

0-99 cc two stroke, 0-150 cc four stroke, no full size wheels (18" & 21")

Pre-75 Mini 1 For all domestic & imported minibikes with a maximum wheel size of 16" Engine size limit will be 100cc for 2-strokes & OHV 4-strokes. No limits for flathead motors. Suspension travel will be limited to 5" front & 3" rear.
Pre-75 Mini 2 For all domestic & imported minibikes with a maximum wheel size of 12" Engine size limit will be 100cc for 2-strokes & OHV 4-strokes. No limit for flathead motors. Suspension travel will be limited to 3" front & 2" rear
Pre-75 Mini 3 For all domestic & imported minibikes with a maximum wheel size of 8" Engine size limit will be 100cc for 2-strokes & OHV 4-strokes. No limits for flathead motors. Suspension travel (if any) will be limited to 2" front & rear.

Greenhorn Class

For non-racers with no race experience and modest riding ability. A fun, non-stressful class for spouses & little ones riding small playbikes and pitbikes from 50 - 125cc with no full-size wheels. Race bikes are not allowed. Minimum age is 8. No maximum age limit. Here's the perfect way to get your spouse and kids invilved out on the track in a safe & friendly non-competitive atmosphere.

Notes:

  1. The minimum age for all classes is 16 years except for the junior class (12-15) and mini (8 & up).
  2. All Pre ’75 machines must have no more than 7” of front wheel travel and 4” of rear wheel travel.

The Vintage Minibike classes are meant to recreate the Golden Era of 1969-1971 when minibike racing was absolutely booming in certain parts of the country and Minibike Guide Magazine was outselling most of the motorcycle mags. Here are a few samples of some bikes that we would like to see in these classes:

  • Pre-75 Mini 1 - Steens, Mini-Enduro, Bonanza Typhoon.
  • Pre-75 Mini 2 - Rupp Black Widow, Speedway Scarab, Trail 70.
  • Pre-75 Mini 3 - Bonanza Minicross, Powell Challenger, Cat Slingshot.

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