Wheel Upsizing 101: A Begginners Guide
Upsizing your wheels is one of the most popular custom upgrades out there, and for good reason. Bigger wheels can completely change the look of your ride, tighten up your handling, and open the door to a world of style options. But if you just start slapping on the biggest set you can find, you might end up with a rough ride, messed-up speedometer, or worse, costly suspension issues.
Let’s break down the right way to upsize your wheels, what you’ll gain, and what to watch out for.
Why Even Upsize?
Upsizing isn’t just about flexing on the road. There are real advantages to going bigger when it’s done right:
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Better Aesthetics: Larger wheels can visually fill out your wheel wells and give your vehicle a more aggressive, sportier look.
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Improved Handling: Wider wheels allow for wider tires. Wider tires mean a bigger contact patch on the road, aka better grip during turns.
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Sharper Braking: More grip isn’t just about corners. It can also mean shorter stopping distances.
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More Style Options: Upsizing opens the door to a wider selection of wheel designs, finishes, and fits that just aren’t available in stock sizes.
Wheel and Tire Basics

Before you swap wheels, you’ve got to understand how sizing actually works. The goal with upsizing is to maintain the overall diameter of your wheel + tire combo. That way, your speedometer stays accurate, your handling stays predictable, and you don’t mess up your ride height.
Here are the key terms:
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Wheel Diameter – How tall the wheel is (usually 15–22 inches).
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Wheel Width – How wide the wheel is, affecting how wide your tires can be.
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Tire Aspect Ratio – A percentage that compares the tire’s sidewall height to its width. Lower ratios = shorter sidewalls = sportier feel.
Example:
Let’s say you currently run 17″ wheels with 225/50R17 tires. A “Plus One” upgrade would mean 18″ wheels with 225/45R18 tires. You’re trading shorter sidewalls for a larger wheel but keeping the overall diameter nearly the same.

