NEW for 2019 - Raceceivers are MANDATORY!


Atwater Karting Speedway Classes

2019 Race Season

Caged Classes  

Rookie Animal 5-7 265 lbs. .225 purple plate Alcohol  

Rookie Flathead 5-7 265 lbs. .425 purple plate Alcohol  

Rookie Clone 5-7 265 lbs. .375 red plate Pump gas *not to exceed ¾” diameter pipe, Mini B-91 muffler  


Non-Caged Classes  

Rookie Animal 5-7 235 lbs. .225 purple plate Alcohol  

Rookie Flathead 5-7 235 lbs. .425 purple plate Alcohol  

Rookie Clone 5-7 235 lbs. .375 red plate pump gas *not to exceed ¾” diameter pipe, Mini B-91 muffler.  


Sportsman Animal 7-8 235 lbs. .225 purple plate 3 hole Alcohol  

Sportsman Flathead 7-8 235 lbs. .425 purple plate 3 hole Alcohol  

Sportsman Clone 7-8 235 lbs. .375 red plate pump gas *not to exceed ¾” diameter pipe, Mini B-91 muffler.  


JRI Animal 8-11 250 lbs. .250 black plate 3 hole Alcohol  

JRI Clone 8-11 250 lbs. .425 green plate pump gas *not to exceed ¾” diameter pipe, Mini B-91 muffler.  


JRII Animal 12-15 300 lbs. .312 gold plate 3 hole Alcohol  

JRII Clone 12-15 300 lbs. .500 purple plate pump gas *not to exceed ¾” diameter pipe, Mini B-91 muffler. 


Stock Medium Flathead 16 & up 345 lbs Alcohol  

Animal Medium 16 & up 345 lbs. Alcohol  

Animal Heavy 16 & up 370 lbs. Alcohol  


Clones 16 & up 370 lbs. Pump gas  


Race What You Bring 16 & up 370 lbs. single cylinder 4 cycle Alcohol  


LO206 - Age 16 & up, 370 lbs Pump gas, drum clutch w/spec air filter.  

NOTE: All Classes – Open Clutch & Slick Tires Only  All Clones & LO206 – 87 Octane Pump Gas Only – NO ADDITIVES  

NEED to have 3 karts to make an official class.