This quality replacement 13x5.00-6 tire with KF8893 tread tire from Clever fit the versions 1-18 of the Razor Dirt Quad fits both front and rear wheels. Also fits other applications. The size of this tire is 13x5.00-6. Versions 19+ of the Dirt Quad use a 12x5.00-6 tire that looks very similar to this tire but is 1" less in diameter. Specifications Brand: Clever Size: 13x5.00-6 Tread code: KF8893 Compatibility: Hammerhead Torpedo Razor Dirt Quad