We just got out of the 6 mile mud run when I noticed his left rear tire was low. We pumped it up dumped soapy water on it looking for the leak. Found a small bead leak.
We then head out to an area with deep water to wash the machines off and to look at the tire better. Part way there his rear end locked up. Could not go forward. Pushed it backward about 20 ft then he able to go forward.Took off for the water Just before the water the rear locked up again and the tire was really low again.
I saw something similar before on a canam. A rock jammed between the caliper and the wheel knocked a 2" hole in the wheel.
We took off he wheel it wasn’t a rock. The caliper mounting bolts had fallen out. The caliper was jamming into the wheel locking it up and cracked the wheel.
Check your caliper bolts. For that matter check all the fasteners.