Many drivers do not consider the size of their vehicle’s wheels and tires. Generally, people think of different wheel sizes for cosmetic purposes. However, wheel size and tire size are important. Using improper tires is expensive and dangerous.
Larger tires provide more grip on the road. As the width of car tires increases, more surface area is covered on the road. It enhances the maneuverability and handling of the vehicle. As for the wheels, they have been increasing in size over the decades.
Prior to the 2000s, 15-inch diameter wheels were standard on all vehicles. Then, in the early 2000s, 17-inch wheels became a common, premium option. Since the 2000s, big wheels have become an aftermarket status thing and most automakers have started offering cars with big wheels.
Different Wheel Sizes Explained
Let’s take a closer look at different car wheel sizes.
15 Inch Wheel Size
15-inch wheels allow for tires with larger sidewalls. Modern cars do not use 15-inch wheels. You can still find them on some off-road trucks and SUVs. Typically, they are part of a dedicated off-road package because they allow tires with larger sidewalls. This is considered an advantage during smooth terrain and rock crawling.
The height of the tire walls helps prevent rim damage from stones and rocks and cushions the vehicle from massive impacts. When it comes to big impacts, smaller diameter wheels are less likely to buckle.
In the aftermarket and on the track, you’ll often find 15-inch wheels, where the lower rolling mass and wheel diameter factor into the gearing ratio. Budget cars use 15-inch wheels due to their relatively low weight and cost.
16 Inch Wheel Size
Economy cars and sports cars use 16-inch wheels. The cost of wheels and tires is economical. For SUVs, the 16-inch wheel size brings the advantage of thicker tire walls to fill out the wheel arch.
17 Inch Wheel Size
Different wheel and tire sizes result in different vehicle performance. Sports cars usually use 17-inch wheels. 17-inch wheel sizes are more common these days. For sports cars, there’s a balance of price, size, more rolling mass, more unsprung weight, and taller final gear. Also, there are many tire options in the market for 17-inch wheels.
These wheels have more space for cushioning. The tire treads of 17-inch wheels offer better maneuverability and road holding compared to larger 19-inch or 18-inch wheels and tires.
18 Inch Wheel Size
Typically, 18-inch wheels are used on road cars and crossovers that require fuel economy. Although 18-inch wheels are more expensive, they are considered in many sports cars and regular cars that will be on the freeway for long periods of time.
In general, there isn’t a drastic difference in the ride quality of 17- vs. 18-inch wheels. The only difference is the sidewall and your suspension setup.
As for race cars, Formula 1 recently switched from 13-inch wheels to 18-inch wheels. It’s a big change that brings a whole new set of dynamics to engineers, racing drivers, and mechanics who have to carry more weight during a pitstop. Wheel size has been changed for more front grip.
19 Inch Wheel Size
An important question to consider when buying wheels is wheel size. Cars with 19-inch wheels generally have higher speeds. 19-inch wheels and tires are more expensive. That means cars with 19-inch wheels are faster. This is because the sidewall height decreases as wheel size increases. As a result, vehicles with 19-inch wheels have sharper handling and better ride quality.
20 Inch Wheel Size
Different wheel and tire sizes offer different features. 20-inch wheels are used on crossovers and SUVs for greater vehicle traction. 20-inch wheels are commonly used on crossovers and SUVs. However, they also offer excellent on and off-road performance. Additionally, they are used in sports cars and supercars. These have a high rotational mass which helps in good handling and maneuverability. 20-inch or larger wheels are expensive and don’t offer the best fuel economy. The main difference between steel and alloy wheels is that the latter is offered in larger sizes of 20 inches and beyond.
Conclusion
In summary, larger wheels are generally associated with improved stability and a shorter range of braking distances. However, the bigger the wheel, the lower the fuel economy. This is because larger wheels increase the maximum car load and thus increase the mileage.
FAQs
1. Does wheel size affect fuel economy?
Yes, larger wheels typically result in lower fuel economy due to increased weight and rolling resistance.
2. Are larger wheels better for performance?
Larger wheels can improve handling and stability, but they may also increase weight and reduce acceleration.
3. Can I switch to a different wheel size for my car?
You can, but it’s important to ensure compatibility with your vehicle’s specifications and maintain overall tire diameter to avoid speedometer errors.
4. Do larger wheels affect ride comfort?
Yes, larger wheels with low-profile tires can result in a stiffer ride and less comfort over rough roads.
5. Are aftermarket wheels a good investment?
Aftermarket wheels can enhance the appearance and performance of your car, but it’s crucial to choose high-quality wheels that are properly fitted to your vehicle.