Class Structure

    MICRO ROK

AGE: 7 – 9 years old
WEIGHT 230 lbs
ENGINE Mini ROK
REAR WIDTH 50 in
TIRE: Bridgestone “YLR” 4.5/10.0-5
NOTES: Exhaust restrictor

Chest Protectors are MANDATORY for all drivers under 13 years of age.

    MINI ROK

AGE: 8 – 12 years old
WEIGHT 245 lbs
ENGINE Mini ROK
REAR WIDTH 50 in
TIRE: Bridgestone “YLR” 4.5/10.0-5
NOTES: Chest Protectors are MANDATORY for all drivers under 13 years of age.

  JUNIOR ROK

AGE: 12 – 15 years old
WEIGHT 320 lbs
ENGINE ROK GP
REAR WIDTH 55 1/8 in
TIRE: Bridgestone “YLR”      Front 4.5/10.0-5         Rear 7.1/11.0-5
NOTES: Exhaust restrictor

Chest Protectors are MANDATORY for all drivers under 13 years of age.

  SENIOR ROK

AGE: 15 years old
WEIGHT 355 lbs
ENGINE ROK GP
REAR WIDTH 55 1/8 in
TIRE: Bridgestone “YLR”      Front 4.5/10.0-5         Rear 7.1/11.0-5

  MASTER ROK

AGE: 32+ years old  or   +190 body weight
WEIGHT 390 lbs
ENGINE ROK GP
REAR WIDTH 55 1/8 in
TIRE: Bridgestone “YLR”      Front 4.5/10.0-5         Rear 7.1/11.0-5

  SHIFTER ROK

AGE: 15 years old
WEIGHT 385 lbs
ENGINE ROK Shifter
REAR WIDTH 55 1/8 in
TIRE: Bridgestone “YLR”      Front 4.5/10.0-5         Rear 7.1/11.0-5

  SHIFTER  MASTER ROK

AGE: 32+ years old  or  +190 lbs body weight
WEIGHT 405 lbs
ENGINE ROK Shifter
REAR WIDTH 55 1/8 in
TIRE: Bridgestone “YLR”      Front 4.5/10.0-5         Rear 7.1/11.0-5

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