Pro Race - Class Structure

 

Class Notes Age Weight Tires Suggested
Gearing
           
Kid Kart WKA rules - no restrictor 5-7 150 Open n/a

Yamaha
Rookie

WA55b carb with RLV YBX exhaust
Suggested for less experienced drivers
7-12 200 YKC 11/73
Yamaha
Sportsman

WA55b carb with RLV SSX exhaust
Suggested for high experience drivers

8-12 250 YKC 11/73
HPV
Sportsman
WA55b carb with HPV 1 8-12 250 YKC  11/73
Yamaha Junior RLV SSX exhaust 12-15 305

YKC

11/79
Yamaha
Supercan
RLV SSX exhaust 15+ 345 YKC 11/80
HPV Heavy

WB3a carb with HPV-4 pipe

15+ 360 YKC 11/80
TAG WKA engine rules and weights 15+ WKA YKC Leopard
11/82
TAG Masters

WKA Masters engine rules and weight.
Age 35, or age 30 with 200lb. driver.

30+ WKA YKC Leopard
11/83
125cc Shifter ICC or Moto Engine 15+ 385 Open  
Spec Racer Chassis and engine per
Spec Racer Specific Rules
12+ 380 O.E.M.
or
MG IR
stock
ROTAX  
 
       
Micro Max Junior cylinder, restrictors, 'micro' kit
Spec gear - 14x73
 7-10  235  Mojo D2  14/73
Mini Max Junior cylinder and restrictors
Spec gear - 13x82
 9-12  265  Mojo D2  13/82
Junior Junior cylinder (no exhaust valve)  13-16  320  Mojo D2  
Senior Max    15+  365  Mojo D2 12/78
Master  *Age 32+ or 16+ & 190lbs with all
gear except helmet
 32+*  405  Mojo D2  12/79
DD2    15+  385  Mojo D3  

Any problems or issues, please contact us.
© 2009 JET Karting. All Rights Reserved.