Go Kart Harness | eBay This 2" Go kart safety harness is originally designed for sand rails. It is fully adjustable and fits adults and kids. This belt fits on single seater seats! 4 Point Adjustable Single Seat Belt Safety 50cc Harness Go Kart ATV UTV Quad. $24. Buy It Now. Free Shipping. For most Chinese go kart and buggie. For single or double seat. Amazon: go kart harness wwwon›Search›go kart harness1-16 of over 1,000 results for "go kart harness" Showing selected results. See all results for go kart harness. Minireen Wire Harness Wiring Loom CDI Ignition Coil Spark Plug Rebuild Kit for 50cc 70cc 90cc 110cc 125cc Stator CDI Coil ATV Quad Bike Buggy Go Kart. by Minireen.