Weight Savings If you have 18-inch steel wheels, upgrading to 20-inch alloy wheels could save weight, which improves the steering response and cornering of the vehicle. The lighter rotational weight also could provide a small increase in acceleration.

Yes you can put 20 inch rims on your vehicle but with limitations. This will depend on how wide the rims and tires will be and also if the tires will clear the struts and suspension parts when driving and turning.

It is possible to get a 17 and 20 inch wheel with the same overall diameter. If you notice most of the bigger wheeled vehicles, are using short walled tires. This can keep the same height of the ride and not change the odometer reading or speedometer.

For example, larger tires decrease your fuel economy because they are heavier, while smaller tires increase fuel efficiency. Bigger tires also have a higher rolling resistance than smaller tires which means they require more resistance and effort to get them rolling.

Bigger Wheels = Bigger Bills Overall, bigger tires and wheels are better for increasing your vehicle’s traction. Changing to larger tires with an improper sidewall height can cause damage to your vehicle’s suspension system, wheels, and the tires themselves, and can run the risk of incorrect speedometer readings.

It can also improve performance: A shorter sidewall flexes less while the vehicle is making turns, thus maintaining grip, while a wider tire improves lateral stability. Switching to a bigger wheel can open up a wider selection of compatible tires, particularly performance models.

Putting larger wheels on a vehicle than the ones with which it left the factory can cause problems for a vehicle’s suspension and brakes even if lower-profile tires keep the overall diameter the same. Bolting on larger metal wheels gives your vehicle’s springs and shock absorbers more weight to contend with.

Bigger wheels look cool, but wheel and tire size has a huge effect on ride, handling, and noise. And unfortunately with wheels, you can’t usually can’t test drive them before you make a purchase. The smallest wheels offered the best ride quality, too, though with a slight reduction in perceived stability.

Replacing a standard 17-inch alloy wheel with an 18- or 19-inch alloy rim will add weight (With exceptions).

AAA – Yes, wheel size has a big impact on ride comfort. The smaller 16-inch wheels come with tyres that have larger sidewalls that act as cushions against sharp edges on the roads, like ruts and potholes. While 17-inch tyres look much better, the shorter sidewalls aren’t as good in filtering out road shocks.

When changing the car’s original wheels and tires, the general rule of thumb is that you can go up or down by one inch. For example, if your car is currently riding on 17-in wheels, you can reduce the size to 16 inches.

16″ tires are cheaper to buy…for instance on discounttire.com bfg at’s are $170 each for a 16″ wheel and $198 each for a 17″ wheel. 17″ wheels look a little nicer being a little bigger.

They can be visually appealing. Go big and get noticed! Typically, 20-inch tires have less sidewall and show more of the wheel, which some drivers find to be more aesthetically pleasing by giving the vehicle a more aggressive look.

As already said: 18” gives you better on-road handling; a taller sidewall gives you more traction off-road. In general, a larger wheel = a more expensive trim. And to some people, a larger wheel also = better looks.