Classes Summary

The ROK Cup USA class structure is consistent with the program recognized around the world: Micro ROK, Mini ROK, ROK Junior, ROK Senior, ROK Master, ROK Shifter and ROK Shifter Master.

Class Age Weight Engine Rear Width Kart #'s Other
Micro ROK 7-9 230lbs. Mini ROK 50in. 1–99 Fixed Gear, Carb Jets. Exhaust restrictor.
Mini ROK 8-12 245lbs. Mini ROK 50in. 100–199 Exhaust restrictor, Gear Selection 11/82 or 10/75
Junior ROK 12-15 320lbs. ROK GP 55 1/8 in. 200-299 Exhaust restrictor
Senior ROK 15+ 355lbs. ROK GP 55 1/8 in. 300-399  
Master ROK 32+ 390lbs ROK GP 55 1/8 in. 600-699  
Junior 100cc 12-15 310lbs ROK VLR / IAME KA100 55 1/8 in. 800-899 Exhaust restrictor
Senior 100cc 15+ 350lbs ROK VLR / IAME KA100 55 1/8 in. 900-999  
Master 100 cc 32+ 380lbs ROK VLR / IAME KA100 55 1/8 in. 700-799  
ROK Shifter 15+ 395lbs ROK Shifter 55 1/8 in. 400-499  
ROK Master Shifter 32+ 410lbs ROK Shifter 55 1/8 in. 500-599  
125 ROK Shifter Limited 35+ 410lbs ROK Shifter 55 1/8 in. 1-99  
80 Masters (rear Brake only) 32+ 375lbs 80 Honda 55 1/8 in. 1-99  
80 Masters (front Brake karts) 32+ 395lbs 80 Honda 55 1/8 in. 1-99  

Track Maps

National Rev National Sprint Rev Sprint