BRIGGS JUNIOR SPORTSMAN 1
LITE & HEAVY
DRIVER REQ: Age 8 thru 10.
ENGINE: Briggs & Stratton Stock Animal Engine with a restrictor plate top hole 0.275” and a bottom hole of 0.325” (turquoise/blue).FUEL: Methanol.
MINIMUM WEIGHT: 250 lbs. (LITE), 265 lbs. (HEAVY).
BODYWORK: No steering fairing allowed.
SPEC TIRES: Dunlop DCM. Front and rear 4.50 x 5”.
MAXIMUM WHEEL WIDTH: 6”.

BRIGGS JUNIOR SPORTSMAN 2
LITE & HEAVY
DRIVER REQ: Age 10 thru 12.
ENGINE: Briggs & Stratton Stock Animal Engine with a restrictor plate 0.505” (Gold) intake restrictor plate.
FUEL: Methanol.
MINIMUM WEIGHT: 275 lbs. (LITE), 290 lbs. (HEAVY).
BODYWORK: No steering fairing allowed.
SPEC TIRES: Dunlop DCM. Front and rear 4.50 x 5”.
MAXIMUM WHEEL WIDTH: 6”.

BRIGGS RESTRICTED JR
SPORTSMAN MEDIUM
DRIVER REQ: Age 12 thru 15.
ENGINES: Briggs & Stratton Stock Animal Engine 0.575” (Black) intake restrictor plate.
FUEL: Methanol.
MINIMUM WEIGHTS: 320 lbs.
SPEC TIRES: Dunlop DCM. Front: 4:50 x 5” and rear 6:00 x 5”.
MAXIMUM WHEEL WIDTH: Front 6”, rear 7.75”.
OTHER: Any competitor who has been a national class champion in any other class from previous years is not allowed to compete in this class.

BRIGGS RESTRICTED JR
LITE, MEDIUM & HEAVY
DRIVER REQ: Age 12 thru 15.
ENGINES: Briggs & Stratton Stock Animal Engine with 0.575” (Black) intake restrictor plate.
FUEL: Methanol.
MINIMUM WEIGHTS: 310 lbs. (LITE), 320 lbs. (MEDIUM), 325 lbs. (HEAVY).
SPEC TIRES: Dunlop DCM. Front: 4:50 x 5” and rear 6:00 x 5”.
MAXIMUM WHEEL WIDTH: Front 6”, rear 7.75”.

BRIGGS SENIOR
DRIVER REQ: Age 35 and older.
ENGINE: Briggs & Stratton Stock Animal Engine.
MINIMUM WEIGHT: 375 lbs.
SPEC TIRES: Firestone YFA. Front and rear 5.00 x 6” or 6:50 x 6”.
MAXIMUM WHEEL WIDTH: 5.00 x 6” tire - 6.5”, 6.50 x 6” tire 8.75”.

BRIGGS ANIMAL LITE, MEDIUM & HEAVY
DRIVER REQ: Age 15 and older.
ENGINE: Briggs & Stratton Stock Animal engine.
FUEL: Methanol.
MINIMUM WEIGHT: 325 lbs. (LITE), 350 lbs. (MEDIUM), 375 lbs. (HEAVY).
SPEC TIRES: Firestone YFA. Front and rear 5.00 x 6” or 6.50 x 6”.
MAXIMUM WHEEL WIDTH: 5.00 x 6” tire - 6.5”, 6.50 x 6” tire 8.75”.

BRIGGS SUPER HEAVY
DRIVER REQ: Age 15 and older.
ENGINE: Briggs & Stratton Stock Animal Engine.
FUEL: Methanol.
MINIMUM WEIGHT: Overall minimum weight is 400 lbs. Maximum kart weight is 200lbs.
SPEC TIRES: Firestone YFA. Front and rear 5.00 x 6” or 6.50 x 6”.
MAXIMUM WHEEL WIDTH: 5.00 x 6” tire - 6.5”, 6.50 x 6” tire 8.75”.

BRIGGS RAPTOR 340 & 370
DRIVER REQ: Age 15 and older.
ENGINE: Briggs & Stratton Stock 5HP Engine.
FUEL: Methanol.
MINIMUM WEIGHT: 340 lbs., 370 lbs.
SPEC TIRES: Firestone YFA. Front 5.00 x 6” and rear 6.50 x 6”.
MAXIMUM WHEEL WIDTH: Front 6.5”, rear 8.75”.

BRIGGS WORLD FORMULA
MEDIUM & HEAVY
DRIVER REQ: Age 15 and older.
ENGINE: Briggs & Stratton Stock World Formula engine.
FUEL: Gasoline only.
MINIMUM WEIGHT: 360 lbs. (MEDIUM), 385 lbs. (HEAVY).
SPEC TIRES: Bridgestone YHC Front 4:50 x 5” and rear 7:10 x 5”MAXIMUM WHEEL WIDTH: 5.00 x 6” tire - 6.5”, 6.50 x 6” tire 8.75”.

KID KARTS
(Exhibition Only)
DRIVER REQ: Age 5 -7.
SPECS: Comer C-50 or C-51, Gas & oil only, 150 lbs min weight, open tire compound. Front & rear size 10x4.50 or 4.60-5 w/ max 33.75” circumference. See section 900 for more info.