I have a 1988 LoadRite single axle trailer that I use to haul my 20' GW Overnighter. I'm pretty sure this is the original trailer sold with the boat when it was new. The trailer is in very good condition but tires are totally shot and need to be replaced ASAP. They are on 16.5" rims and try as I might, I cannot find replacement tires to fit this trailer. Was wondering if I could downsize to 16" rims/tires which are widely available. There's plenty of ground clearance now so I don't believe the slight loss of wheel/tire radius will affect the capability or handling. of the trailer. Does anyone have any experience/thoughts,/suggestions about changing trailer wheel size?