Air Down For What? -- The Off-Road Tire Pressure Guide

Quick PSI Reference

Terrain	Suggested PSI	Notes
Gravel & Graded Dirt	16-28 PSI (varies by vehicle weight)	Start modest. 22-28 PSI for heavier rigs. Keep speeds smooth to reduce heat buil...
Rock Crawling	12-22 PSI (lower for lighter rigs)	Lower gradually until wheelspin calms. The tire should visibly bulge at the cont...
Sand & Dunes	10-18 PSI (lower = more flotation)	Flotation is everything. Maintain steady momentum -- avoid sharp turns at very l...
Mud	16-24 PSI (moderate reduction)	Moderate PSI helps the tread self-clean. Too low can create suction that bogs yo...
Snow & Ice	18-26 PSI (aim to float)	Similar approach to sand -- aim to float, not dig. On packed snow or ice, a touc...

Vehicle PSI Guides

Specific tire pressure recommendations for your rig. Select your vehicle for a detailed breakdown by terrain.

Jeep Wrangler JL / JLU

4,200 - 5,300 lbs -- 245/75R17 (32")

Rock: 15-20 -- Sand: 12-15

Toyota 4Runner (5th & 6th Gen)

4,400 - 5,000 lbs -- 265/70R17 (31.5")

Rock: 15-20 -- Sand: 12-18

Ford F-150 / Raptor / Tremor

4,500 - 5,700 lbs -- 275/65R18 (Raptor: 315/70R17 / 37")

Rock: 18-22 -- Sand: 15-18

Toyota Tacoma (3rd & 4th Gen)

4,200 - 4,800 lbs -- 265/65R17 (30.5")

Rock: 18-22 -- Sand: 12-18

Ford Bronco / Bronco Raptor

4,300 - 5,500 lbs -- 255/70R17 (Raptor: 315/70R17 / 37")

Rock: 15-20 -- Sand: 12-15

Rivian R1T / R1S EV

6,800 - 7,200 lbs -- 275/65R20 (LT) or 275/55R22

Rock: 24-28 -- Sand: 24-28

Rivian R1T / R1S (20" LT Upgrade) EV

6,800 - 7,200 lbs -- 275/65R20 LT (KO2, Falken AT4W, Toyo AT3 EV)

Rock: 22-26 -- Sand: 20-24

Jeep Gladiator JT

4,600 - 5,500 lbs -- 245/75R17 (32")

Rock: 15-20 -- Sand: 12-16

All Vehicle Guides

Terrain Guides

Gravel & Graded Dirt

16-28 PSI (varies by vehicle weight) (standard wheels)

The most common off-road surface. Airing down on gravel and graded dirt roads transforms the ride from jarring to smooth, especially on washboard sections.

Rock Crawling

12-22 PSI (lower for lighter rigs) (standard wheels)

Rock crawling demands maximum traction and tire conformity. Lower pressures let your tires wrap around obstacles instead of bouncing off them.

Sand & Dunes

10-18 PSI (lower = more flotation) (standard wheels)

Sand requires the lowest pressures for most drivers. The goal is to float on top rather than dig in. A wider contact patch distributes your vehicle's weight across more surface area.

Mud

16-24 PSI (moderate reduction) (standard wheels)

Mud is counterintuitive -- you don't want to go as low as sand or rock. A moderately aired-down tire with aggressive tread will self-clean better than a flat, mushy tire.

Snow & Ice

18-26 PSI (aim to float) (standard wheels)

Snow driving follows similar principles to sand -- you want to float on the surface. But ice and packed snow require enough pressure for the tire's siping and tread to grip.

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