Can You Fit Larger Tires on a Jeep Wrangler Rubicon Without Special Wheels?

Do you want to upgrade your Jeep Wrangler Rubicon with larger tires but don't know if special wheels are necessary? The answer often depends on your specific needs and the size of the tires you wish to install. In this article, we'll explore the complexities of fitting larger tires on a Rubicon and discuss the necessary steps and considerations, including the role of aftermarket wheels, tire width, and modifications.

What Does "Larger" Mean?

The term "larger" can refer to both an increase in tire width and tire diameter. In most cases, the tread diameter (the overall size of the tire) is more crucial than the tire width. However, the specific meaning of "larger" will determine the feasibility of the installation and any necessary modifications.

Tire Diameter: Can You Go Higher?

If you are planning to increase the tire diameter (taller tire), it is generally possible to do so on a stock Jeep Wrangler Rubicon. However, you need to be mindful of the turning clearance, as taller tires can affect the turning radius and potential interference with the upper control arms.

Tire Width: Limits and Requirements

When it comes to increasing the tire width, there are several factors to consider:

Stock Wheel Capacity: The stock 17-inch wheels on the Rubicon are designed to accommodate tires up to a width of around 285mm. Tires wider than this can lead to significant clearance issues, such as hitting the upper control arms during turns. Aftermarket Wheels:** For wider tires, using an aftermarket wheel with sufficient offset can help. For example, a 12.50-inch-wide tire can often be mounted on a 9-inch wide aftermarket wheel with an appropriate offset. However, even if it is outside the tire manufacturer's recommendation, wheel spacers may be necessary to ensure proper fitment and clearance. Lift Height and Year Model: The height of the lift and the model year of your Rubicon play a significant role in determining the maximum tire width you can safely install. A 2018 Jeep Rubicon JL/JLU can comfortably run 35x12.50 tires with a 9-inch wide aftermarket wheel and 0 or greater offset. For the 2007-2018 Jeep Rubicon JK/JKU, a minimum 2-inch lift is required for the same 35x12.50 tire to ensure proper clearance.

Tire Modification and Clearances

In some cases, especially with larger and more aggressive tires, it may be necessary to trim the Rubicon Rail to prevent interference with the rear tire. This is typically only required for the most extreme tire sizes and designs.

Conclusion

While it is possible to fit larger tires on a Jeep Wrangler Rubicon without special wheels, the installation process involves careful planning and consideration of the tire diameter and width. Stock wheels may suffice for some tire sizes, but for wider or larger tires, modifying the wheels or using aftermarket wheels with appropriate offsets is often necessary. Always consult with a professional or follow detailed instructions to ensure a safe and proper installation.