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Rear Tire Description

Our Tires are specifically designed like a sprint car tire with a block pattern that hooks up hard but does not have a tendency to tear up tracks during the early part of a race day.  These tires are very concentric and have almost no run out.  The carcass and inner belting are engineered for a non-suspension dirt car as opposed to a full suspension sprinter or midget.

The 12x9-6 Rear Tire will come in a 22, 33, and soon a 55 compound for RR Spec Tire Venues and a 65X for Hot Hard and Abrasive Tracks. Unlimited Outlaw non-cage karts in the Midwest and North East are testing some RBFHX-65 tires on extremely hard and abrasive tracks in the heat of the day.
Specs:
Specifications for RBHH-33 12x9-6 - suggested retail – $69.50
Durometer: 45-47 @ 72 degrees F
Run out on 10.25” wide rim is 37.5”
Run out on 9.0” wide rim is 38.5” (can be grown to a 39.5” Run out)
Block Height – 8mm

Front Tire Description

The Front tire is fashioned after a proven Sprintcar Tread Pattern and works well on all types of surfaces and adapts very well as the racing surface changes through out the Race Day.  This Tire will be available in a 33 and a 22 compound and has an engineered profile to be more compatible with the radical steering geometry of a dirt kart.

Specs:
Specifications for RBHH-33 11x5.5-6 – suggested retail – $59.50
Durometer: 45-47 @ 72 degrees F
Run out on 6.0” wide rim is 36.”
Run out on 5.5” wide rim is 36.5” (can be grown to a 37” Run out)
Block Height – 8mm
Tire has rounded profile by design to make steering geometry consistent

541-218-2266 :: Info@rocketboyracing.com