NTK Class Structure*
Class Age Engine Rule Book Weight Tires Front Tire Rear Tire Pipe Slide Silencer Other
Kid Karts
Kid Kart Comer 5-7 C-50/C-51 IKF 160 Evinco Blue 4.60-5 4.60-5



Kid Kart Honda 5-7 GXH50 Honda 160 Evinco Blue 4.60-5 4.60-5



Kid Kart Bambino 5-7 IAME Bambino USPKS 160 Evinco Blue 4.60-5 4.60-5



Kid Kart 206 5-7 LO206 Jr Briggs 175 Evinco Blue 4.60-5 4.60-5 #5507 .285” - Black - #555728 #4104 Carb Lock
Cadets
206 Jr. 1 8-12 LO206 - Blue Slide Briggs 240 Evinco Blue 4.60-5 4.60-5 #5507 Blue - #555741 #4104 Carb Lock
Rookie Sportsman 8-11 KT100 IKF 235 Evinco Blue 4.60-5 4.60-5



TaG Cadet 1 7-10 Micro ROK ROK Cup USA 225 Evinco Blue 4.60-5 4.60-5



Micro Swift SKUSA 225



TaG Cadet 2 9-13 Mini ROK ROK Cup USA 245 Evinco Blue 4.60-5 4.60-5



Mini Swift SKUSA 245



Juniors
206 JR. 2 12-15 LO206 Briggs 310 Evinco Blue 4.60-5 6.00-5 #5507 Yellow - #555741 #4104 Carb Lock
Jr. Super Sportsman 12-15 KT100 IKF 300 Evinco Blue 4.60-5 6.00-5



100 CC Jr. 12-15 ROK VLR ROK Cup USA 320 Evinco Blue 4.60-5 7.10-5



IAME KA100 SKUSA 320



TaG Jr. 12-15 IAME X30 SKUSA 320 Evinco Blue 4.60-5 7.10-5



ROK GP ROK Cup USA 320



Rotax Jr. Max TaG USA 320



Seniors
206 Sr. 16+ LO206 Briggs 360 Evinco Blue 4.60-5 6.00-5 #5507 Black - #555590 #4104
206 Heavy 16+ LO206 Briggs 390 Evinco Blue 4.60-5 6.00-5 #5507 Black - #555591 #4104
Sr. Super Sportsman 16+ KT100 IKF 340 Evinco Blue 4.60-5 7.10-5



100 CC Sr. 16+ ROK VLR ROK Cup USA 360 Evinco Blue 4.60-5 7.10-5



IAME KA100 SKUSA 360



TaG Sr. 16+ IAME X30 SKUSA 365 Evinco Red 4.60-5 7.10-5



ROK GP ROK Cup USA 380



Rotax Max/EVO TaG USA 380



100 CC Master 30+ ROK VLR ROK Cup USA 380 Evinco Blue 4.60-5 7.10-5        
IAME KA100 SKUSA 390        
TaG Masters 30+ IAME X30 SKUSA 395 Evinco Red 4.60-5 7.10-5



ROK GP TaG USA 405



Rotax Max/EVO TaG USA 410



Shifter 16+ Honda CR125 SKUSA 385 Evinco Red 4.60-5 7.10-5



ROK Shifter ROK Cup USA 405



IAME 175 SKUSA 415



ICC/KZ
410















* Engines not listed in class structure will run with an appropriate class but will not score points
* For full class details see current NTK Rulebook
* Weights may be adjusted for Local Option Rules