Bearings need to be periodically serviced, all trailers need their tire-condition checked; lights, chains and fasteners all need to be inspected and repaired. Lou, I have a 2017 Dodge Grand Caravan.

Boar’s steel and aluminum wheels are designed to fit eight-lug trailer axles and allow the use of a stouter 225/70R19.5 14-ply, load-range G commercial-grade tire.

Yokohama Tire’s latest commercial product – the 121T – is now on sale in the U.S. Debuting at the recent TMC trade show, the 121T is specifically engineered for trailer use only.

“Trailers are free-rolling wheel position, so those tires are designed to fight the potential onset of irregular wear,” says Walmsley. “Tires designed for the free-rolling trailer axles may look ...