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Extend your Wheelbase: Move your rear axle back to utilize your vehicle's full capability! Click here to learn more
5.0" with our "EXT" (Extreme) tank - 7.0" with our "COMP" (Competition) tank - 9.0" with our "RK COMP" tank
Extend your Fun: with 5 extra gallons in our ENDURO or 11 extra gallons in our SAFARI gas tanks!