Plus-Sizing Your Wheels: When It's Worth It (And When It's Not)
Bigger wheels wrapped in lower-profile tires — "plus-sizing" — is one of the most popular changes drivers make to a car's look and feel. It can sharpen handling and transform the stance. It can also beat up your ride and your rims if it's done wrong, which matters a lot on Calgary roads.
Here's what plus-sizing actually is, the real trade-offs, and how to do it without regret.
The short version
- Plus-sizing means a bigger rim and a shorter sidewall, keeping the overall diameter about the same.
- Upsides: sharper handling, more grip, and the look.
- Downsides: harsher ride, more pothole and curb risk, more noise, higher cost.
- Done right, overall diameter stays within about 3% so your speedometer stays accurate.
What plus-sizing actually is
Plus-sizing increases the wheel (rim) diameter while reducing the tire's sidewall height, so the overall diameter of the wheel-and-tire package stays close to stock. "Plus 1" is one inch larger, "plus 2" is two inches, and so on. Keeping the overall diameter the same is what keeps your speedometer honest and your gearing unchanged. If the numbers look like a foreign language, our guide on how to read a tire size breaks them down.
The upsides
- Sharper handling. A shorter, stiffer sidewall responds to steering inputs faster.
- More grip. Plus-sizing usually means a wider tire and a bigger contact patch.
- The look. Larger wheels fill the wheel wells and change a car's whole stance.
The downsides
- Harsher ride. Less sidewall means less cushion over bumps.
- More damage risk. A low-profile tire offers less protection against potholes and curbs, so bent rims and blowouts are more likely.
- More road noise and often a higher price for both wheels and replacement tires.
- Speedometer error if the overall diameter changes too much.
Plus-sizing on Calgary roads
This is the part Calgary drivers need to weigh. Our spring pothole season is hard on tires, and a low-profile setup gives a pothole far less sidewall to absorb the hit. The same impact that dents a standard tire can crack a low-profile tire and bend the rim. If you plus-size, it's worth being extra careful through pothole season — or keeping a more sensible setup for winter.
How to do it right
Keep the overall diameter within about 3% of stock, match or exceed the original load rating, and get the wheel width and offset right for your vehicle. Many drivers run a plus-sized setup for summer and a smaller, taller winter package on separate wheels — better ride and cheaper winter tires. Browse options on our wheels and rims page or the full wheel collection.
Frequently asked questions
Does plus-sizing affect my speedometer?
It shouldn't, if it's done correctly. Plus-sizing keeps the overall diameter about the same, so the speedometer stays accurate. Problems happen when the new package is significantly taller or shorter than stock.
Do bigger wheels ruin the ride?
They firm it up. A shorter sidewall transmits more of the road, so the ride is sharper but less cushioned. How much you notice depends on how far you go.
Are low-profile tires bad for potholes?
They're more vulnerable. Less sidewall means less protection, so low-profile tires and rims are more likely to be damaged by a hard pothole hit — a real consideration in Calgary.
Is plus-sizing worth it?
For looks and handling, many drivers think so. Just go in knowing the trade-offs in ride comfort, cost, and pothole risk, and keep the overall diameter close to stock.
Can I plus-size just for summer?
Yes, and many people do — a plus-sized summer setup with a smaller, taller winter package on separate wheels is a popular, practical combination.
Thinking about new wheels? Call or book a visit and we'll help you get the sizing right. Prince Tires · 111 42 Ave SW, Calgary, AB T2G 0A4 · (403) 452-4283 · Book online.
Posted by the Prince Tires team. Calgary tire specialists since 2021. Last updated: June 2026.
