So, you’re thinking about replacing your tires with a different sized tire. Before you do, you should know that altering your vehicle's tire size has more impact on it than just modifying its appearance. Installing larger wheels and tires, also known as “plus-sizing,” can affect the accuracy of its speedometer and odometer, handling, steering response and more. If done incorrectly, changing the tire size can be detrimental to the safety of your vehicle. If done properly, choosing to go with a larger tire size can be beneficial and even increase the performance of your vehicle.
So you’re thinking that you want to go for the big tire look. Depending on your wheel size, clearance and a couple of other factors, you should be good to go. Increasing tire height can help to reduce fender well gap, increase ground clearance and even provide a softer ride. While there are always exceptions to any rule, most passenger cars lack the needed clearance between fenders and suspension components to allow for such an increase. Most trucks, SUVs and crossover vehicles, however, have adequate clearance that would allow for a taller tire size to be used.
Before making the decision to go with a taller tire, you should know that there is a loss of torque for every inch taller the new tire is. Larger tires can have a negative influence on stopping power and possible decrease of comfort on pavement as more unsprung weight can translate to a rougher ride.
Vehicles can, in fact, benefit from an increase in tire width. Using a wider size while maintaining the same overall diameter is known as “plus-zero” sizing. It results in a wider contact patch which provides better lateral grip, more grip on hard braking, less vehicle roll in corners and gives an improved, low-profile cosmetic appearance. This type of change in tire size can also benefit trucks, SUVs and crossover vehicles.
Wider tires have a higher rolling resistance resulting in higher gas consumption. They can also dramatically reduce turning radius as wider tires contact the bump stops sooner, increase road noise and won’t always fit on your original equipment wheel.
So, it’s important to keep in mind that there are some benefits and deficits with opting to change the size of your tires.
For more information on plus-sizing and details on what will and won't fit your vehicle, visit your local General Tire dealer.
How much can you change tire size? ›
When changing tire sizes, we recommend staying within 3% of the diameter/height of the original tire. Any more than this and you face the risk of brake failure.Can I put a different tire size on my car? ›
Once you choose a tire size for your vehicle, you'll want to stick with that size when you buy replacements. The reason for this is that a differently sized tire can confuse your speedometer and even cause damage to your vehicle's anti-lock braking systems and stability system calibrations.Can I put 18 inch tires on 19 inch rims? ›
Despite what your car salesperson may have told you, it's OK to get an 18-inch spare to go with your 19-inch wheels.Is it OK to put smaller tires on? ›
Smaller tires can cause inaccurate information from your speedometer and odometer, create transmission shifting issues, cause anti-lock brakes to malfunction, and may even trip your check engine light.Can wrong size tires damage car? ›
Unfortunately, altering the tire size of a vehicle without thorough and careful consideration is a decision that can really bite. Fitting the wrong tire size can cause damage to a vehicle, and is a real safety hazard as well.Can I replace 16 inch wheels with 18 inch? ›
You might get 18″ tires with the same height as the original 16″ tires - but since there is much less sidewall height between road and wheel, they will be more easily damaged by road potholes or other irregularities.Can I replace my 235 tires with 245? ›
In this example, yes it is possible for a 235 tire to be changed with a 245 tire if your vehicle is suitable for the change. The 245 tire will be slightly larger than the 235 tire and depending on the vehicle, there may not be enough room to safely fit a larger tire.Can you replace 225 65r17 with 235 65r17? ›
Yes you could but it would reduce the overall diameter of the wheel and tyre, so the height would be slightly less, as would the tread width.Can I replace 14 inch wheels with 15 inch? ›
Yes, you can switch from a 14-inch tire and wheel combo to a 15-inch tire and wheel combo, so long as your new wheel has the same bolt pattern, and you have the space to fit the larger wheel and tire.What is the advantage of 18 inch wheels? ›
Pros of 18-Inch Wheels and Tires
Because 18-inch tires have a larger sidewall, they are typically more flexible than ones with a smaller sidewall. Your tires act as shock absorbers and can provide a greater cushion when going over bumps and potholes.
Can I replace 20 inch wheels with 18 inch? ›
The quickest answer is NO. The 18 and 20 are the wheel diameter measurement. Think of trying to put your finger through a keyhole, your finger is too big. So trying to put an 18″ tire on a 20″ rim won't work either because the wheel is too big.Can you put a bigger tire on the same rim? ›
As a general rule of thumb, it's safe to fit a tire up to 20 millimeters wider than stock on the original rim. The actual width of the tire will vary depending on the width of the rim: The tire will expand 5 millimeters for every half-inch (12.5 millimeters) increase in rim width.Can I use 205 tires instead of 225? ›
Expert Reply: You can certainly change your trailer tires to a narrower 205mm width as long as your wheels are 6- or 6-1/2-inches in width. These are the only size wheels that can take both 225mm and 205mm tire sizes. Please refer to the linked article on tire sizes.Can you size up or down on tires? ›
While it's certainly possible to upgrade your tires' size, it's usually best to stick to your manufacturer-recommended tire size for optimal performance. Increasing the size of your tires may give your car more ground clearance, but it may also affect handling, drivetrain performance and fuel economy.Do smaller tires affect gas mileage? ›
The short answer: yes. Tires can make a big difference in the number of miles a driver gets to a tank of gas. In fact, 20% to 30% of a vehicle's fuel consumption and 24% of road vehicle CO2 emissions are tire-related.Do tires need to be the exact same size? ›
For optimal safety and performance, Continental recommends fitting the same tires to every wheel position on your car, so drivers should have the same brand, size, tread pattern, load index, and speed rating on the front and rear tires.What changes when you install a tire that is a different size? ›
When the tire size is different from the factory, a car's alignment will need to be adjusted after a tire change. This is because tires that are wider or taller than original equipment tires stretch the suspension slightly and cause changes in camber and caster angles, as well as toe angles.Will changing tire size affect transmission? ›
Will Smaller Tires Affect My Transmission? Smaller tires can also affect the performance of your vehicle's transmission. The transmission needs a specific circumference. Changing the circumference will change the needed gear ratios inside your transmission or differential.Do bigger tires use more gas? ›
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.Can I use 17 inch tires instead of 18? ›
When you move to a larger wheel diameter (such as from 17 to 18 inches), you need new tires to match. Those tires need a lower profile (or sidewall height) to maintain adequate clearance when they go over bumps and potholes, which makes the suspension fully compress and rebound.
Do bigger rims affect gas mileage? ›
As the size of the rim is increased, it would weigh more, which would mean more energy is needed to overcome the mass to get the car going. If this is done continuously over a certain duration of time, you will see an increase in fuel consumption when compared to using smaller sized rims.What damage can bigger tires cause? ›
Additionally, up-sizing impacts the speedometer, fuel economy, and can place stress on the powertrain and brakes. If installed incorrectly, up-sized tires may also rub the wheel well, brake calipers, or vehicle frame, and could potentially wear down any parts they grind against.Can I use 245 65r17 instead of 235 65r17? ›
Expert Reply: You might be able to replace a 235/65-17 with a 245/65-17 tire. The tires you have now, 235/65-17, are about 9.25 inches wide and 29 inches tall. The 245s on the other hand are 9.65 inches wide and 29-1/2 inches tall.Are 225 and 245 tires interchangeable? ›
Yes, but the width of the tire will be a bit wider and because the aspect is the same (75), it will also be a bit taller. This assumes the width of the wheel can handle the extra 10MM.What numbers can I change on my tires? ›
That said, the only dimensions you can change are the width and aspect ratio — never the wheel size, unless you buy replacement wheels — and you should always strive to keep the total height of the tire the same as the OEM. So, if you widen the tire, you may need to decrease the aspect ratio, and vice versa.Are 235 and 255 tires interchangeable? ›
7 Answers. 8 people found this helpful. In a word, NO. The vehicle was designed for the 255 width tire, and you will lose serious amounts of highway traction with a tire that is 20 mm narrower.How do I know if my tires are interchangeable? ›
Width and diameter are the two factors that determine tire and rim compatibility. For diameter you'll need to be sure that your tires and wheels are an exact match, e.g. a 215/65R17 tire will only fit on a 17" diameter wheel. There's a bit more flexibility when it comes to wheel widths.Can I use 185 65R14 instead of 175 65R14? ›
Yes you can, but the better size would be 185/60 R15 so that the difference in speed between the actual vs speedometer reading is minimized, and the difference between the actual mileage vs the shown mileage is minimized.Can bigger rims mess up car? ›
Eventually, this could cause premature transmission failure. Larger and heavier rims will also cause the engine to work harder, which could hamper fuel economy and dull acceleration. Larger, heavier wheels could also have a negative effect on other components of the vehicle, such as wheel bearings.Can I use 185 70R14 instead of 175 65R14? ›
If you are changing rim/alloys to 15 inches than it's fine otherwise you can fit 185/70R14, 195/65R14 and 205/60R14 with the existing rim/alloys.
What size tire gives the smoothest ride? ›
Smaller wheel = smoothest ride quality, low stability, predictable handling, average road noise. Medium wheel = average ride quality, average stability, predictable handling, low road noise.Do bigger wheels slow you down? ›
So, increasing your wheel size will decrease the driving force from your wheels which will culminate in a decrease in acceleration of said wheels. To summarise, a car's engine finds it more difficult to rotate larger wheels, making for a decrease in overall acceleration.Do bigger wheels go faster or slower? ›
Larger wheel diameters can result in faster and more composed handling; however, it can also result in slower acceleration capability. While there are a few disadvantages for any vehicle when increasing the wheel and/or tire size, curb appeal usually outweighs them.Do bigger tires give a smoother ride? ›
Larger tires will typically give you better handling and stability, while smaller tires will provide you with improved ride quality and a smoother ride at the expense of some handling.Can I replace 20 inch rims with 18 inch rims? ›
As long as the overall tire diameter is the same, you won't have to re calibrate anything. If you use the factory size tires for the 18" wheels, you should be fine.Can I change my 15 inch wheels to 16 inch? ›
Yes, you may upgrade the tires with wheels from 15 inch to 16 inch at the authorised dealership.Can my front tires be bigger than my back tires? ›
While it's fine to put narrower tyres on the front and wider on the back, it's pointless to put wider tyres on just one side of the car. This would change the weight balance and would mean one side of the vehicle would grip differently to the road when braking. It would change the cornering dynamic, too.Can you put 245 tires on 275 rims? ›
02. Are the 245 tires the same as 275? Both sizes are meant to work the same way. They can fit on similar sizes of rims.Can I replace 19 inch wheels with 17 inch? ›
It depends. If the 17 inch wheels have the same diameter as the 19 inch wheels and fit over your brakes and are not much wider or something, it should be easy and not much will change. Problems may arise when wheels with a totally different diameter are installed.Can I change my 205 55r16 tires with 205 60r16 tires? ›
Save this answer. Show activity on this post. Yes it will be completely fine, in fact 205/55/16 are the most common 16" tires.
Can I put 40 in my tires? ›
For instance, if 35 psi is recommended, and the maximum safe pressure listed on your sidewall is 44 psi, you can safely put 38 or 40 psi in your tires. You can even go to 44 psi. You'll experience a harder ride, but you won't create a blowout danger.Is it OK to buy 2 tires instead of 4? ›
It's usually dependent on the vehicle itself and the remaining tread depths on the other tires. It's always best to replace all 4 tires at the same time. This is because all 4 tires spin independently of one another, and different tread depths and/or styles can cause them to spin at different speeds.How much difference in tire size is ok? ›
As a general rule, you want replacement tires that are within 3 percent of the diameter (height) measurement of your existing tires' diameter — assuming your current tires are what your owner's manual recommends.Do you go faster with smaller tires? ›
Yes, smaller wheels accelerate faster, but it doesn't matter. It all has to do with the rotational moment of inertia. The moment of inertia of an object is simply how easy it is to move the object. The heavier something is, the harder it is to move.Do bigger tires mean less miles? ›
Larger tires and wheels also add weight that could reduce your car's gas mileage.What type of tire gives the best fuel mileage? ›
- Michelin Energy Saver A/S. The Michelin Energy Saver A/S is one of the most popular fuel-efficient tires on the market. ...
- Dunlop Sport BluResponse. ...
- Bridgestone Ecopia EP001S. ...
- Pirelli Cinturato P7 Blue. ...
- Michelin Energy Saver+ ...
- Goodyear Assurance Fuel Max.
For optimal safety and performance, Continental recommends fitting the same tires to every wheel position on your car, so drivers should have the same brand, size, tread pattern, load index, and speed rating on the front and rear tires.Can you put a 17 inch tire on an 18 inch rim? ›
It is physically impossible to mount a 17 inch tire on an 18 inch rim.Can I put 245 tires on 225 rims? ›
Yes, but the width of the tire will be a bit wider and because the aspect is the same (75), it will also be a bit taller. This assumes the width of the wheel can handle the extra 10MM. If the original tire is 235/75/15, then the 245 should be OK.Can you replace 17 inch rims with 18 inch? ›
Yes, you can use bigger rims as long as you fit a lower profile tire in order to maintain the original overall wheel diameter.
Will any 17-inch tire fit on a 17-inch rim? ›
For diameter you'll need to be sure that your tires and wheels are an exact match, e.g. a 215/65R17 tire will only fit on a 17" diameter wheel. There's a bit more flexibility when it comes to wheel widths.Can I change rim size on my car? ›
You cannot simply go out and put on a larger wheel and tire and expect your car to be the same. Your car is designed to roll on a specific wheel and tire size. Changes to either may start a cascade of handling and mechanical issues if you don't plan carefully.Can you put bigger tires than recommended? ›
Additionally, up-sizing impacts the speedometer, fuel economy, and can place stress on the powertrain and brakes. If installed incorrectly, up-sized tires may also rub the wheel well, brake calipers, or vehicle frame, and could potentially wear down any parts they grind against.Do wider tires give a smoother ride? ›
As a general rule, bigger wheels result in a rougher ride. Switching to a smaller wheel and a thicker tire can give you a smoother ride without any major modifications to your car. However, if you go too crazy and change your wheel size too much, it can cause some problems.Can I use 235 tires instead of 255? ›
In a word, NO. The vehicle was designed for the 255 width tire, and you will lose serious amounts of highway traction with a tire that is 20 mm narrower.Can I get bigger tires without changing rims? ›
As a general rule of thumb, it's safe to fit a tire up to 20 millimeters wider than stock on the original rim. The actual width of the tire will vary depending on the width of the rim: The tire will expand 5 millimeters for every half-inch (12.5 millimeters) increase in rim width.Does tire size affect speed? ›
Up-sizing, or installing a taller tire, will lead to a speedometer reading that is slower than your actual speed. This is because a taller tire will have a larger overall circumference, causing it to need to travel more distance per revolution than the original equipment tire.Is bigger wheel size better? ›
Larger wheels offer better traction, and because they have more rubber on the tire, this also means a better grip on the road. Larger tires are better for car cornering and handling than your regular tires. They also reduce the braking distance and improve braking overall, adding to safety.