RV & Motorhome Tires: What Alberta Owners Need to Know

RV tires are a different beast from what's on your daily driver, and getting them wrong can turn a summer trip to the Rockies into a very bad day on the side of the highway. If you're prepping your rig for Alberta camping season, here's what you actually need to know about selecting, maintaining, and replacing tires on a motorhome, fifth wheel, or trailer.

The bottom line: RV tires carry enormous static loads, age faster than they wear out, and follow different rating rules than passenger tires. Treat them like the safety-critical component they are.

The Short Version

• RV tires (ST or LT rated) are not interchangeable with passenger or light-truck tires
• Load range matters more than brand — check your RV's door placard first
• Age is the main enemy: plan to replace every 5–7 years, no later than 10
• Inflate to the placard spec, not the sidewall maximum
• TPMS monitoring pays off on long Alberta highway runs
• Balance RV tires any time you install a new set

RV Tires Are Not Car Tires

This is where a lot of RV owners get tripped up. A motorhome or fifth wheel sits heavy and often sits still — parked for days or weeks at a time in summer sun. Passenger tires aren't built for that. The sidewalls crack. The rubber breaks down from UV and ozone, not from road kilometers.

ST-rated tires (Special Trailer) are designed specifically for trailer applications. They have stiffer sidewalls to handle lateral load forces, and they're rated for the sustained weight a parked axle puts on a stationary tire. LT-rated tires (Light Truck) are another common choice for motorhomes that need a bit more flexibility in handling and ride quality.

Whatever your RV manufacturer specified, that's what you run. It's not a suggestion — running the wrong tire type is a safety issue, not just a performance one.

Load Range: The Number That Actually Matters

Load range tells you how much weight a tire can safely carry. It matters more than brand or price when it comes to an RV.

• Load Range C (6-ply rated) — lighter trailers and smaller rigs
• Load Range D (8-ply rated) — mid-size travel trailers
• Load Range E (10-ply rated) — most Class A, Class C, and fifth wheels
• Load Range F or G — heavy diesel pushers and large commercial-grade rigs

Your RV's door jamb sticker lists the required tire size and the correct cold inflation pressure. That number — not the maximum stamped on the sidewall — is what you inflate to. Running under-inflated tires on an RV is one of the leading causes of blowouts, and a blowout on a rig that size on the Deerfoot or the Icefields Parkway is a serious situation.

For a deeper look at how load ranges work across trailer applications, see our guide to trailer tires and load ranges.

Age Over Mileage: The RV Tire Reality

Here's what catches most RV owners off guard: tires age even when they're not being driven. UV exposure, ozone, and temperature cycling all break down the rubber compound whether you put kilometers on the tires or not.

Most tire manufacturers and RV associations recommend:

• Annual inspection for sidewall cracking, bulging, or dry rot
• Consider replacement at 5–7 years from the manufacture date
• Replace regardless at 10 years, even if tread looks like new

The manufacture date is molded into the sidewall as a 4-digit DOT code at the end of the DOT string. Something like "2423" means the 24th week of 2023. If you're buying a used RV, check those codes before you hand over the deposit.

Alberta's conditions accelerate this timeline. The cycle of hot summers, deep cold winters, and chinook temperature swings between them puts extra stress on rubber. A tire that might hold up for 8 years in a moderate climate may start showing sidewall cracking in 5 or 6 years here.

Inflation and TPMS: Staying on Top of Pressure

Under-inflation is the leading cause of RV tire failure. On a vehicle that heavy, a tire problem at highway speed is a major event — not just an inconvenience.

• Check cold inflation before every trip, not after you've been driving
• RV tires lose pressure during storage — check monthly even when parked
• TPMS systems made for RV use give you real-time alerts while moving
• Most RVs don't come with TPMS installed; it's an aftermarket addition worth considering for longer trips

If your vehicle's TPMS light has been giving you trouble, our TPMS guide for Calgary drivers covers what those alerts actually mean and when to act on them.

Alberta Road Conditions: What RV Owners Should Know

Summer in Alberta means Banff, Jasper, and the Icefields Parkway — sustained mountain grades, gravel pull-offs, and occasional construction debris. A few things worth knowing before you roll out:

• Weight management. Overloading an RV pushes tires past their load rating. If you're hauling bikes, gear, a full water tank, and a trailer, make sure your tire load ratings cover the actual gross weight of the loaded vehicle.
• Road hazard coverage. Mountain highways have more debris than city streets. A road hazard protection plan covers punctures and sidewall damage — ask about it when you buy new tires.
• Check conditions before you go. 511 Alberta has real-time highway conditions, construction delays, and any weight restrictions on your route. Worth a two-minute check before heading into the mountains.
• Post-storage inspection. After a winter in storage, inspect tires for flat-spotting and cracking before your first trip. Mild flat-spotting works itself out after a few kilometers; sidewall cracks and dry rot don't.

Getting RV Tires in Calgary

At Prince Tires, we stock and service tires for motorhomes, fifth wheels, and trailer rigs. We're a family-owned Calgary shop — open since 2021 — with wholesale pricing and a price match guarantee. We've earned a 4.9-star rating from 560+ Google reviews largely because we give people straight information: we'll tell you what your rig actually needs, not talk you into more than that.

If you're not sure what size or load range you need, bring your door jamb sticker information when you call or come in. We can confirm fitment and source specialty sizes. Visit our trailer and RV tire page to see what we carry, and check out our guide to choosing the right trailer tires for towing if you want more background on what to look for.

We're at 111 42 Ave SW, Calgary — open seven days a week, same-day service when we have your size in stock.

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FAQ: RV & Motorhome Tires for Alberta Owners

Can I put regular passenger tires on my RV?

No. Passenger tires aren't rated for the sustained load and heat buildup that RVs generate, especially on long Alberta highway runs. RVs need ST (Special Trailer) or LT (Light Truck) rated tires with an appropriate load range. Using the wrong tire type is a safety issue, not just a performance one.

How long do RV tires actually last in Alberta?

Most RV tire manufacturers recommend replacement at 5–7 years regardless of tread depth, and no later than 10 years from the manufacture date. Alberta's temperature swings — chinook heat to deep cold — accelerate sidewall cracking. Always check the DOT date code on the sidewall, not just the tread depth.

What load range do I need for my motorhome or fifth wheel?

Most Class A and Class C motorhomes and fifth wheels require Load Range E (10-ply rated) tires. Check your RV's door placard for the manufacturer's recommended tire size and inflation pressure — that spec overrides everything else. Your RV dealership or owner's manual can confirm if you're not sure.

Do RV tires need to be balanced?

Yes. Unbalanced tires on an RV cause vibration, uneven wear, and stress on axle components. Have them balanced whenever you install new tires or start noticing shimmy at highway speeds. It's a straightforward service that makes a real difference on longer hauls.

Can Prince Tires in Calgary mount and balance RV tires?

Yes — we carry and service tires for motorhomes, fifth wheels, and trailer rigs. Call us at (403) 452-4283 or book your appointment online and we'll confirm the right fitment for your rig before you come in.

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Ready to get your rig road-ready for the season? Call us at (403) 452-4283 or book a tire appointment online. We're at 111 42 Ave SW, Calgary — open seven days a week, no appointment required for a quote.

Posted by the Prince Tires team. Last updated: June 2026.

Sources:
Transport Canada — Tire Safety
511 Alberta — Highway Road Conditions