Stock Jeep Rubicon Tire Sizes: Complete Specification Guide by Generation
The Jeep Wrangler Rubicon comes equipped with different tire sizes depending on the generation and model year. Understanding your vehicle’s factory tire specifications is essential for maintenance, replacements, and informed upgrade decisions.
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Current Rubicon Models (2024–2026)
The modern JL-generation Rubicon features 285/70R17 tires. This size equates to approximately 33 inches in diameter and 11.22 inches in width. The JL Rubicon uses 17-inch wheels standard, though the 2025 Rubicon 392 and Extreme Recon variants come equipped with 315/70R17 tires, which measure about 35 inches tall.
The Rubicon X and standard Rubicon both use 285/70R17 specifications. These tires were specifically engineered for the Rubicon’s wider axles, raised fender flares, and enhanced suspension compared to Sport and Sahara models.
Previous Generation (JK Rubicon: 2007–2017)
JK Wranglers had two distinct tire specifications based on model year. From 2007 through 2017, the Rubicon generally came with 255/75R17 tires. However, beginning in 2018, Jeep upgraded the JK Rubicon to 285/70R17—the same size found on current JL models.
Notable exceptions include the 2013 Rubicon 10th Anniversary Edition, which featured 265/70R17 tires. Earlier anniversary models varied slightly in their tire configurations.
Older Generation (TJ Rubicon: 1997–2006)
The TJ-generation Rubicon, produced from 1997 to 2006, came standard with 245/75R16 tires. These tires measured approximately 29.5 inches in diameter. The TJ platform utilized 16-inch wheels across most Rubicon variants.
Understanding Tire Size Designations
Tire sizes follow a standardized format: 285/70R17. Here’s what each component means:
285 represents the tire width in millimeters. 70 is the aspect ratio, indicating the tire’s sidewall height as a percentage of width. R denotes radial construction. 17 indicates the wheel diameter in inches.
A 285/70R17 tire measures approximately 32.7 inches in overall diameter—slightly larger than the labeled “33-inch” figure used colloquially in off-road communities. The actual diameter varies slightly based on load rating and inflation pressure.
Factory Tire Pressure and Load Ratings
The stock Rubicon tires operate at a factory-set pressure listed on the driver’s door jamb. For current JL Rubicons, the standard pressure is 37 PSI when properly loaded. Load rating also varies: modern factory tires come in Load Range C, which supports the vehicle’s weight distribution across all four corners.
Changing to aftermarket tires of different load ranges or aspect ratios affects speedometer accuracy and fuel economy calculations. Many owners reprogram their vehicle’s computer settings to reflect new tire sizes if upgrading significantly.
Upgrading From Stock Tire Sizes
The Rubicon’s factory specs allow some flexibility. With no lift kit, the JL Rubicon can accommodate 35-inch tires (315/70R17 or 35×12.5R17) with minimal rubbing on smooth roads and mild off-road use. Serious off-road articulation may cause minor fender liner contact.
A 1-to-2-inch lift kit allows 35-inch tires to function freely without rubbing during typical off-road trails. For 37-inch tires, 2-to-3 inches of lift becomes necessary, and the stock axle assemblies approach their operational limits on challenging terrain.
The OEM wheels that come with Rubicons are typically 17-inch or 18-inch alloy units. Upgrading to larger wheel diameters—particularly 20-inch wheels paired with lower-profile tires—maintains the overall diameter while changing the aesthetic.
Optional Factory Tire Sizes
Jeep offered several optional tire configurations for Rubicon models. Earlier, JK Rubicons could be equipped with 255/70R18 tires as an alternative option. Some Rubicon models included 275/55R20 or 275/45R22 options if owners changed to larger aftermarket wheels simultaneously.
Always reference your vehicle’s specific build sheet or door jamb placard to confirm the tire size that left the factory.
Quick Reference: Rubicon Tire Sizes by Generation
| Generation | Years | Factory Tire Size |
|---|---|---|
| JL Rubicon (standard) | 2018–2026 | 285/70R17 |
| JL Rubicon 392 / Extreme Recon | 2024–2026 | 315/70R17 |
| JK Rubicon | 2007–2017 | 255/75R17 (2007–2017) |
| JK Rubicon | 2018+ (late JK) | 285/70R17 |
| TJ Rubicon | 1997–2006 | 245/75R16 |
Common Tire Upgrade Path
Most owners upgrading from stock Rubicon tires select 285/70R17 or 315/70R17 (35-inch equivalent) replacements. Popular brands include BF Goodrich All-Terrain KO2, Goodyear Wrangler TrailRunner, and Falken Wildpeak AT3W, all available in these sizes.
When replacing stock tires with the same size and load rating, no modifications to suspension, wheels, or computer settings are needed. If stepping up to 35-inch tires, wheel spacers (if using stock wheels), and recalibration of the vehicle’s tire-size sensor become relevant considerations.
Final Recommendation
For Rubicon owners seeking factory tire replacements, matching the OEM tire size ensures compatibility without secondary modifications. For those planning upgrades, understanding the progression from stock 33-inch tires to 35-inch or 37-inch options helps inform budget and project scope. Always verify your specific model year and build configuration against the manufacturer’s specifications before purchasing replacements or upgrades.
