Hey Jeep enthusiasts! So, you're itching to upgrade the tire size on your brand-new 2023 Gladiator Rubicon, huh? Awesome choice! The Gladiator Rubicon is a beast, and fitting it with the right tires can seriously amp up its off-road capabilities and overall look. But before you go wild, let's dive into everything you need to know about the 2023 Gladiator Rubicon tire size. We're talking about the stock sizes, the maximum sizes you can fit without major modifications, and everything in between. This guide is your ultimate go-to resource, so let's get started!

Understanding the Stock Tire Size

Okay, let's start with the basics. What size tires does your 2023 Gladiator Rubicon come with straight from the factory? The stock tire size is typically LT285/70R17. These tires are designed to provide a good balance of on-road comfort and off-road performance. They're a solid starting point, but let's be honest, many of you are already thinking about something bigger and more aggressive. The factory tires are usually all-terrain or mud-terrain tires, depending on the specific package and any dealer upgrades you might have opted for. The beauty of the Rubicon is that it is already designed for some serious off-roading right out of the box.

But why is it important to know the stock tire size? Well, it sets the baseline. It helps you understand the size increase you're aiming for, and it is a crucial piece of information if you plan on using your spare tire. It is also important to consider the overall diameter, width, and aspect ratio, which will impact your Gladiator's performance and appearance. You'll also want to consider the rim size, which is 17 inches on the stock Rubicon. That means you can only use tires designed for 17-inch rims without upgrading your wheels. Knowing the stock size is essential for ensuring your new tires fit properly and don't cause any rubbing or other issues. Remember, a slight increase in tire size can make a huge difference in off-road traction and ground clearance.

Another reason to pay attention to the stock size is to understand how any changes might affect your vehicle's systems. For instance, the speedometer is calibrated for the stock tire size. If you install larger tires, your speedometer will read slower than your actual speed. You'll need to recalibrate your speedometer to get an accurate reading. This can usually be done with a programmer or by visiting a professional. Additionally, changing tire sizes can affect your vehicle's fuel economy and handling, so it is important to factor that in, too. The stock tires are a well-thought-out compromise between on-road comfort, off-road capability, and fuel efficiency. Changing that compromise requires careful consideration of what is most important to you.

Maximum Tire Size Without Modifications

Alright, this is where things get interesting! You want to know how big you can go without having to make any major changes to your Rubicon. Generally, you can fit up to a 35-inch tire without any modifications. This is a common and popular upgrade. This often means running a 315/70R17 tire size. This size provides a significant improvement in ground clearance and off-road performance, without the need for a lift kit or other extensive modifications. Keep in mind that while you can fit a 35-inch tire, you might experience some minor rubbing at full flex, especially during extreme off-roading. However, for most everyday driving and moderate off-road use, a 35-inch tire is a great option. Make sure to check the manufacturer's specifications.

However, it's always a good idea to test-fit the tires before you fully commit. Different tire brands and models can vary slightly in size, even within the same size designation. Some tires may run wider or taller than others, which could impact fitment. When you're test-fitting, pay close attention to the clearance between the tire and the fender flares, the control arms, and the inner wheel wells. Also, turn the steering wheel lock to lock and check for any rubbing. If you do encounter minor rubbing, you might be able to resolve it with a small amount of trimming or by adjusting the steering stops.

Another thing to consider when fitting larger tires is the backspacing of your wheels. Backspacing is the distance from the mounting surface of the wheel to the inside edge of the wheel. If you stick with your factory wheels, you might encounter some rubbing. Aftermarket wheels with the correct backspacing can help provide more clearance. This can be especially useful if you want to run wider tires. If you're unsure about backspacing, it's always a good idea to consult with a tire shop or a Jeep expert. They can help you choose the right wheels for your desired tire size. Ultimately, the maximum tire size you can fit without modifications depends on a few factors, including the tire brand, the wheel backspacing, and the amount of off-roading you plan to do. However, a 35-inch tire is generally a safe bet for the 2023 Gladiator Rubicon.

Tire Size and Lift Kits

If you're looking to go bigger than 35 inches, you'll likely need to install a lift kit. Lift kits raise the vehicle's ride height, providing more clearance for larger tires. There are several different types of lift kits available, ranging from simple leveling kits to full suspension upgrades. Leveling kits typically raise the front of the vehicle to match the rear, providing a more level stance. These are usually less expensive and easier to install than full lift kits. However, they usually only provide a modest increase in tire clearance.

Full suspension lift kits replace the entire suspension system, including the springs, shocks, and control arms. These kits provide the most significant increase in ride height and allow for the largest tire sizes. They also often improve off-road performance by increasing suspension travel and articulation. The amount of lift you need will depend on the tire size you want to run. For example, a 2-inch lift might allow you to run 37-inch tires, while a 3.5-inch or 4-inch lift might be needed for 40-inch tires.

Keep in mind that installing a lift kit can affect your vehicle's handling and stability, especially at higher speeds. It's essential to choose a high-quality lift kit and have it installed by a qualified mechanic. You should also have your vehicle aligned after installing a lift kit to ensure proper handling and tire wear. Besides the lift kit itself, you might need to make other modifications to accommodate larger tires. These may include extended brake lines, driveshaft modifications, and possibly even regearing your axles. Regearing changes the gear ratio in your axles, which can improve performance and compensate for the larger tires' impact on acceleration and fuel economy.

Finally, remember that the bigger you go, the more modifications you'll likely need. Be sure to consider your budget and the type of off-roading you plan to do when choosing a lift kit and tire size. A well-chosen lift kit and tire combination can transform your Gladiator Rubicon into an even more capable off-road machine, but it is important to do your research and make informed decisions.

Choosing the Right Tires for Your Gladiator Rubicon

Okay, so you've got the size figured out, but which tires should you choose? The best tires for your 2023 Gladiator Rubicon will depend on your specific needs and driving style. There are three main types of tires to consider: all-terrain (AT), mud-terrain (MT), and hybrid terrain. All-terrain tires offer a good balance of on-road comfort and off-road performance. They're a great choice for daily driving and occasional off-roading. They typically have a more aggressive tread pattern than standard all-season tires, providing better traction in mud, snow, and other challenging conditions.

Mud-terrain tires are designed for serious off-road use. They have a very aggressive tread pattern with large voids that help to clear mud and debris. They provide excellent traction in mud, rocks, and other difficult terrain. However, they can be noisy and less comfortable on the road than all-terrain tires. They also tend to wear out faster. Hybrid terrain tires, as the name suggests, are a blend of all-terrain and mud-terrain tire characteristics. They offer a good balance of on-road and off-road performance and are often a good compromise for drivers who want both.

When choosing tires, consider the following factors: the type of terrain you'll be driving on most often; your driving style; your budget; and the tire's load rating. The load rating indicates the maximum weight the tire can carry. It's important to choose tires with a load rating that is appropriate for your vehicle and any accessories you have installed. Read reviews and do your research before making a purchase. Talking to other Jeep owners and tire specialists can help you make an informed decision and choose the best tires for your needs. The right tires can make a huge difference in your Gladiator's performance, so take your time and choose wisely.

Additional Considerations

Beyond size and type, here are a few other things to keep in mind when choosing tires for your 2023 Gladiator Rubicon. First, tire pressure. It's crucial to maintain the correct tire pressure for optimal performance and safety. Check the tire pressure regularly and adjust it based on the driving conditions. For off-roading, you'll often want to lower your tire pressure to improve traction and ride comfort. However, make sure to air your tires back up to the proper pressure before driving on the road. Next, consider wheel offset. Wheel offset is the distance between the wheel's mounting surface and its centerline. The wheel offset will affect the tire's position in the wheel well. A different offset can provide more clearance for larger tires.

Additionally, think about tire wear. Rotate your tires regularly to ensure even wear and maximize their lifespan. Proper wheel alignment can also help extend your tires' life. Also, consider the spare tire. If you're going with larger tires, you'll probably want a matching spare. Make sure your spare tire fits properly and is readily accessible in case of a flat. Finally, don't forget the TPMS (Tire Pressure Monitoring System). If you change your tire size or wheels, you may need to recalibrate your TPMS or replace the sensors to ensure it works correctly. This is very important for safety and it will alert you if your tire pressure is too low. All these factors will help you choose the right tires and ensure you are happy with the way your Gladiator performs.

Conclusion: Making the Right Choice

So there you have it, guys! We've covered the ins and outs of 2023 Gladiator Rubicon tire sizes. From stock sizes to maximum fitments, and everything in between, you should now have a solid understanding of what's possible. Remember to consider your specific needs, your driving style, and your budget. Choosing the right tires is an essential part of owning a Jeep. Ultimately, the best tire size for your Gladiator Rubicon is the one that best suits your needs and your adventures. Enjoy the ride, and happy Jeeping! Remember to always prioritize safety and consult with a professional if you have any doubts.