If you want to understand the backspacing on a stock Jeep JK wheel, you will first need to know what backspacing is.

Backspacing is defined as the distance between the mounting surface on the hub of your wheel and the inside edge of your tire tread. It does not mean anything about the size or diameter of your tires.

Let’s look at What is the backspacing on a stock Jeep JK wheel?

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What Is The Backspacing On A Stock Jeep JK Wheel?

6.25″

Factory Wrangler wheels are 17″ diameter x 7″ wide with 6.25″ backspacing.

What Is The Offset On A Stock Jeep JK Wheel?

The offset of a wheel is the distance between the centerline of the wheel and the mounting surface of the wheel. The offset can be one of three types (measured in millimeters). Zero, positive or negative offset.

A positive offset wheel is when the mounting surface of the wheel is toward the front or brake side of the wheel. This positions the tire more inboard from the fender when compared to a zero or negative offset wheel. A negative offset wheel has the mounting surface toward the back or hub side of the wheel, which makes for a more aggressive stance and typically a wider stance for your vehicle.

A “0” offset is when the mounting surface of the wheel is where it should be in relation to the centerline.

What Does 5 Inch Backspacing Mean?

Backspacing is measured from the back of the wheel to the mounting surface. A wheel with 5 inch backspacing will have a mounting flange that is 5 inches from the back of the wheel. So if you were to place a straight edge on the back of your wheel and measure up to the mounting flange, it would be 5 inches.

How Do You Measure Backspacing On A Wheel?

Backspacing is measured from the inside of the mounting pad where the rim meets the hub to the inside edge of the rim. It is measured in inches. The easiest way to measure backspacing is with a tape measure.

First, lay your wheel on a flat surface so it’s sitting upright on its face. Measure the distance from the inside of the mounting pad to the inside edge of the rim. This will give you your backspacing measurement.

What Does Backspacing Mean On A Rim?

Backspacing is the distance from the inside of the rim (where the tire mounts) to the “hub mounting surface” of the wheel, where it sits on your hub.

The difference between backspacing and offset is that offset is a measure of how far inboard or outboard the mounting surface is compared to the centerline of the wheel. In other words, offset is just a different way of saying “backspacing.”

What’s The Difference Between 35 And 45 Offset?

Stock offset is +45. The difference would be that the aftermarket wheel is 1-1/2″ wider than stock. That would poke out 3/4″ further than stock. The +35 would poke out another 4/10″ beyond that setup.

What Size Tires Will Fit On A Stock Jeep Wrangler JK?

The answer is, it depends. It depends on the tire size and it also depends on whether you are stock or modified. Stock Jeeps can usually fit 35″ tires with no problems. The same thing goes for a leveled Jeep. However, if you have a lifted Jeep, you can go even bigger with 37″-38″ tires.

The catch is that if you are running the stock wheels, they will not fit tires this big unless you modify them with wheel spacers.

A good rule of thumb is to keep the overall diameter of your new tires within 3% of the original tire diameter. This will prevent any interference with your speedometer or odometer readings as well as keep your gear ratio and power in line.

For instance, if you’re currently running a stock tire that’s 32″ in diameter, then a 35″ tire would be safe (35-32=3). In fact, a 33″ tire would also work because that’s only 1″ larger than your current tires. A 37″, however, would be a huge jump (37-32=5) and I wouldn’t recommend doing that without first making some modifications to accommodate them (i.e., a lift kit).

Do some research on the best tires for jeep wrangler JK.

Do All Jeep Rims Fit All Jeeps?

Jeeps are some of the most commonly modified vehicles, and for good reason. They’re ruggedly built and can handle just about anything you throw at them. One of the easiest ways to customize your Jeep is by swapping out the factory wheels for a set of aftermarket ones. But not all rims are created equal. There are several things to consider before buying new rims for your Jeep.

Wheel Size

Jeep wheels come in a myriad of sizes, from 15 inches all the way up to 26 inches and beyond. The diameter of your rim will affect the overall size of your tire, which will have an effect on both performance and handling, so it’s important to consider what you’ll be using your Jeep for before making any changes.

If you’re looking for more performance off-road, then you’ll want larger wheels with more aggressive tread patterns. If you spend most of your time on pavement, then smaller wheels with lower profiles will work better.

Lugs

All Jeeps require different lug patterns, so it’s important that you find a wheel that matches up to your bolt pattern. This can be a little tricky because there is no standard number of lugs across different models. You can determine how many lugs you have by counting how many bolts.

How Do I Know What Size Lift Is On My Jeep JK?

There are many different methods to determine what size lift is on your JK. This article will walk through the most common ways to determine the lift height of your Jeep. If you are looking for instructions on how to measure the backspacing and offset of your Jeep rims, click here.

How to Measure Your Lift Height

The easiest way to determine your lift height is to measure from a flat surface up to a specific point on the Jeep’s frame or body. You can do this with a tape measure, but you can also use a ruler or yardstick if you don’t have one.

Does Lifting A Jeep Affect Gas Mileage?

Lifting a Jeep Wrangler has different effects on the car’s performance, depending on how high it is lifted. A 4-inch lift can affect the car’s fuel economy, but it also improves its off-road capabilities.

When you lift your Jeep Wrangler, you’re increasing its ground clearance. This means that the vehicle can travel over rocks and other obstacles more easily. Raising the height of a vehicle does have some drawbacks, however.

The first drawback is that a lifted vehicle is more susceptible to wind resistance than one that is closer to the ground. This means that it will take more fuel to get from one place to another. The second drawback is that lifting a Jeep Wrangler makes it top-heavy, which can increase your chances of rolling over on rough terrain.

How Can I Make My Jeep Wrangler More Fuel Efficient?

If you are having trouble getting the most miles out of your Jeep Wrangler, then you may want to increase fuel efficiency. There are a number of different ways that this can be done. All it takes is just a little bit of effort.

Keep up on maintenance. By keeping your engine properly tuned and making sure that everything is running smoothly, you will make sure that your engine is working at top efficiency. This is the first step to making sure that you are getting the best possible mileage out of your Jeep Wrangler.

Check Your Tires Regularly. It may not seem like it would make much of a difference, but keeping the air in your tires properly inflated can have a significant impact on the amount of gas you are using. Some people may find that they get 10% better fuel economy when their tires are properly inflated.

Replace Your Air Filter When Necessary. Again, this may not seem like something that could have much of an impact, but replacing your air filter regularly can mean that your engine is working more efficiently and using less gas than it would otherwise.

How Can I Improve My Jeep JK Quality?

Replace the shock dampeners and coil-over springs with lower high-performance shocks and springs. …
Replace the tires with lower-profile tires. …
Install a camber kit to reduce the impact of road surface imperfections. …
Bring the car to a professional to get the wheels aligned.