13x5.00-6 inch inner tube is excellent replacement for Razor Dirt Quad (tire size 13 x 5.00-6 inch or 145/70-6). Please note that versions 19+ of the Razor Dirt Quad use a 12x5.00-6 inch inner tube. Please check your tire size before purchase. Also fits 5.30-6 inch and 4.50-6 inch size tires. Heavy duty inner tube with TR87 angled valve stem Fits for small ATVs, go-karts, buggies, wagons, lawn mowers, garden tractors that use tire size 13x5.00-6 inch Made from rubber, NOT recap, is better in air tightness, elastic damping and aging resistance Before installing, check to see if the inner tubes are completely sealed by putting them in water, if there are any bubbles, they are already damaged. 13x5.00-6 inch inner tube works with versions 1-18 of Razor Dirt Quad, replacement Razor tube Part # W25143060078. Compatible Models for Reference: for Razor Dirt Quad(version 1-18) for ActiveCare 4410 for Carter 2575 - Carter 2606 - Econo Kart-2 Carter Super Wheel for Monster Moto MM-K80R for MotoTec MotoTec MT-ATV Mini Quad for Motovox MGK10 Go-Kart Motovox MGK11 Go-Kart for Murray Go-Karts Nitrox for TaoTao E1-350, E1-500, E2-350, E2-500, EK80, GK80 for Yerf-Dog 3203, 3205, 3206/4206, 3209/4209, 30032, 30034, 32092/42092, 32093/42093, 40093, 42054, 42094, 42101, 42105 Color: Black Material: rubber Measurement: 13x5.00-6 inch Feature: Inflatable Valve: Straight Valve Stem Inspect before installation Inspect outside of tread for protruding nails, pieces of glass, thorns, or other objects.Squeeze any cut to look inside for objects such as Silvers of glass. Visually inspect inside of tire casing for nails, glass or debris. Wipe inside of casing with a rag, and then carefully feel inside with fingers. Use care if using a tire lever. e tire lever is very easy to puncture a hole in your inner tube. Inspect both sides of tire for bead seating and for any sign of the inner tube sticking out. Reinstall if necessary. Package Contents: 4 x Inner Tube Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.