Join our mailing list

Join the SIMA Kart Racing Club and race at one of the best karting facilities in North America. Whether you are karting for the competition or a family weekend getaway, our club welcomes both. We hope to see you at the next event!



February 3 - Speedway Reverse Configuration
March 3 - Standard Configuration
March 17 - Reverse Configuration

A BIG THANK YOU TO OUR SIMA SERIES SPONSORS! Take a look at the fabulous companies and what they have to offer.

Sumas International Racing Academy (SIMA) cultivates a fun, laid back and competitive environment for all levels of racing. SIMA's goal is to re-establish the camaraderie in the sport of karting by strengthening relationships with family and friends who participate in the race day activities, encouraging clean and respectful driving and offering all those to attend the facility with friendly and first class service.

Gates open at 8:00 am. Spectators pay $5 for insurance bands after 10am

SIMA will be open for an official practice day on the Friday.  Practice will be free for those of you who decide to pre-register on-line.   Trailers & RV's are permitted to remain on the grounds overnight on Friday. Sign up for the practice day when pre-registering for the 

Note: See tire rules at bottom of page

Rookie JR
Age 7-10 
**Cadet Karts Only**
L0206 w/yellow slide - 210 lbs
Gazelle - 200 lbs 
100 Leopard w/17mm intake, 2.5mm base gasket & 25mm Exhaust, Gearing 11 - 81- 235lbs
Rotax Micro Max - 220 lbs Rotax International rules except max gear 14-80,
X125 w/17mm intake & 22mm Exhaust, Gearing 11-78 - 245lbs
Level of experience will determine whether driver can move up to  Jr.I. SIMA reserves the right to move kids in to Jr.1.  Will run in conjunction with Jr. I and scored separately.  
NEW RULE: Rear wheels must not extend past side pods

TAG Jr. 1
Age 8-11 

** Cadet Kart Only **
Briggs LO206 w/yellow slide & Cadet Chassis - 210 lbs
Gazelle - 200 lbs
100 Leopard w/17mm,  intake, 2.5mm base gasket & 25mm Exhaust. Spc Gear 11/81 - 235 lbs
Rotax Micro Max - 220 lbs Rotax International rules except max gearing 14-80
Rotax Mini Max (Rotax Inter rules w/20.2 exhaust and 19mm intake) - 245lbs
X125 w/17mm intake & 22mm Exhaust. Spec gear 11/78 - 245lbs
NEW RULE: Rear wheels must not extend past side pods

TAG Jr. 2 
Age 10-12

100 Leopard w/19mm intake and w/30mm Exhaust - 275 lbs
125 Leopard w/19mm intake and w/25mm Exhaust - 275 lbs
X125 w/25mm restrictor and 19mm Intake - 275lbs
Rotax Mini Max (Rotax International rules but w/full size chassis) - 265 lbs

TAG Jr. 3
Age 13-16

125 Leopard w/30mm Exhaust - 330 lbs
100 Leopard open header - 310 lbs
Rotax (310lbs) under Rotax international Rules
X30 w/31mm Exhaust - 330 lbs
X125 w/30mm restrictor - 330 lbs

TAG Newbie/TAG Pro.
Age 16 up





Age 35+

Grand Masters 
Age 55+

125 Leopard - 355lbs
Rotax/Rotax EVO (Rotax Rules for engine specs) - 355lbs
X30 - 365 lbs
Dragon - 390lbs
X125T light - 365lbs
X125T heavy - 390lbs
****TAG Newbie - No more than 2 years of karting experience or has not competed in two full seasons or not a regular racer.  A race by race reviewwill be conducted for eligibility to move into TAG PRO.  SIMA reserves the right to decide placement**** 

125cc Leopard (375lbs)
Rotax/ Rotax Evo (385lbs(Rotax Rules for engine specs)  TBD
X30 (385lbs) 31mm header
Dragon (
X125T 23mm carb (385lbs) 30mm restrictor plate
X125T 27mm carb (400lbs30mm restrictor plate

Expert Shifter/ Sportsman Shifter
Age 16 up

Stock – TM Moto, Honda, TMK9ES Tag ICC (385lbs)
X125S (395lbs)
Modified - Honda, KZ/ICC, TM Cross (410lbs

****125cc engines only****
4 Stroke Sr light, Heavy and Junior

Engine rules as per 
LO206 (370lbs)  
World Formula (

LO206 (390lbs)
World Formula (460lbs

Jr. 1 - Ages 7-11 
Briggs LO-206 (240lbs).  If combined with Jr.1 (210lbs) Cadet chassis and yellow slide.

Jr. 2 - Ages 12-15
Briggs LO206 (310lbs).  Full size chassis.

SIMA reserves the right to assign drivers to classes based on engine configuration and weight*****



  • Shifter Classes and TAG Sr Classes
    Le Cont White
  • Masters & Grand Masters
    Le Cont White and MG Yellow
  • 4 Stroke classes
    Bridgestone YKC or YLC, MG Yellow, Red, Le Cont White, and Le Cont Red.
  • Jr 1 & 2
    MG Red & Le Cont Red.  Jr.1 can only use 4.50 sizes front and rear. Jr.2 and up can use 7.10 for all Jr classes.
  • Jr 3 Class
    Le Cont Red
  • Approved Rain Tires
    Le Cont purple/White and Bridgestone YLP or older.  

 **SIMA reserves the right to adjust weights in order to provide a level playing field. **



Please email for any questions.