An RV tire usually fails from age, not tread wear — months of sitting loaded in the sun between trips ages the rubber faster than driving does, so a motorhome tire with years on the sidewall can fail with tread to spare. Baltimore Tire Shop in Baltimore, MD checks the DOT date code on every RV tire before clearing it for a trip.
A motorhome or towable spends most of its life parked, loaded with water, propane, and gear, on the same four or six tires — and a tire holding that weight while sitting still for weeks between trips ages differently than one driven daily. Tread depth tells you how much rubber is left; it doesn't tell you whether the rubber underneath has already started to crack from UV exposure or flat-spot from months of static weight. Both matter before a trip, and tread alone only answers one of them.
Why does age matter more than mileage for an RV tire?
A low-mileage motorhome can still be running tires old enough to fail, because the clock that matters is the DOT date code, not the odometer. Rubber hardens and the internal plies weaken over years of sun and static weight regardless of how few trips the vehicle has taken — exactly the kind of check reflected in Baltimore Tire Shop's 4.8 rating across 55 Baltimore reviews.
What happens if only one tire gets replaced?
Replacing a single tire on a dual-wheel rear axle without matching the diameter to its mate makes the smaller tire carry more of the load than it's rated for, since the two tires on that axle are supposed to share the weight evenly. Ask whether a replacement is being matched to its pair before it goes on, not just fitted to the axle's bolt pattern.
What should get checked before a motorhome comes out of storage?
Pressure drops over a winter of sitting, sometimes enough to matter before the first mile. Check it cold, before the tires have warmed up from driving, and look over the full tread for flat spots where the weight sat in one place for months.
How old is too old for an RV tire?
There's no single mileage number to go by — the DOT date code matters more than tread depth, since a tire can look fine and still have aged past the point of being trustworthy at highway speed. Check the code stamped into the sidewall, not just how much tread is left.
Why do RV tires crack even when the RV barely gets driven?
Sitting loaded in the sun for months breaks down the rubber faster than driving does, especially on tires carrying a motorhome's full weight the whole time. Storage time matters as much as mileage when deciding whether a tire is still good.
Do all the tires on a motorhome need to match?
The two tires sharing a dual-wheel axle need to match in diameter so the load splits evenly between them. Mismatched sizes on the same axle put more weight on the smaller tire than it's built to carry.
Can Baltimore Tire Shop handle a Class A motorhome's tires?
Call ahead with the tire size and the vehicle's weight rating before making the trip to Baltimore, since larger motorhome tires aren't the same as a standard passenger or light truck size. That call also confirms whether the size is on hand or needs to be ordered in.