KARTS:

• Rookie Beginner/Rookie Advanced (Trophy) 5-7, 250 lbs, Flathead .375 Alky, Flathead .425 Gas, Clone 250 lbs 375 Gas, Small Pipe, Open Clutch
• Kid Kart (Trophy) 4-7, 150lbs
• Jr 1 Medium 8-11, Flathead 240 lbs, 440 Restrictor, Clone 270 lbs .425 Plate
• Jr 2 Medium 12-15, Flathead 270 lbs, .530 Restrictor, Clone 300 lbs, .500 Plate
• Jr 1 Heavy 8-11, Flathead 250 lbs, 440 Restrictor, Clone 280 lbs, .425 Plate
• Jr 2 Heavy 12 -15 Flathead 290 lbs .530 Restrictor, Clone 320 lbs, .500 Plate
• 330 lbs Clone Following 2020 NKA/AKRA Rules (declare at tech), Open Clutch, Big Pipe Allowed
• 370 lbs Clone Following 2020 NKA/AKRA Rules (declare at tech), Open Clutch, Big Pipe Allowed
• Pro Clone, 370 lbs
• KT 100 370 lbs
• Open 4 Cycle, 370 lbs
• Open 2 Cycle, 370 lbs
• Run what ya brung (Any motor combination for karts)
• Rookie Kage 5-8 Green Plate, 270 lbs Open Clutch, Big Pipe, Pump Gas, Aluminum Seats/Belts Required/No Kart Seats Allowed
• Youth Kage 10-15 Purple Plate Builder Prepared 330 lbs 87 Pump Gas, Aluminum Seats/Belts Required/No Kart Seats Allowed
• Adult Kage 15-up Open Stock Appearing Clone or Builder Prepared 425 lbs No Wings, Open Carburetor,  Open Race Fuel, Aluminum Seats/Belts Required/No Kart Seats Allowed. Adult Open/Clone Builder prepares also allowed fuel gas or methanol, 6.5 OHV 168-f clone engine. Engine spec sheet for 6.5 OHV 168-f clone description: Single cylinder, 2 valve, overhead 4 cycle engine. Bore: any, Connection Rod: any, Piston requirements: any.
• Predator Following 2020 Central Iowa Predator Kart (CIPKR) Racing Rules

BIKES, QUADS AND LAWN MOWERS:

• 10″ Pit Bike – 12 and under (Trophy)
• 12″ Pit Bike
• Mad Dog Bike, 12 & Up, 200cc 4 Stroke Limit Air Cooled, 85cc 2 Stroke Limit (No front brake)
• Hooligan Bikes
• Pro Bikes (No front brake)
• Outlaw Three Wheelers
• Quad Jr A/B/C Classes (Trophy)
• Quad C (Trophy)
• Quad A “Open”
• Quad B
• LT 50
• Outlaw Lawn Mowers