🏔️🚙 Overlanding
Tire Size Calculator

The BEST overlanding tire size is 33 inches (285/70R17, 275/70R18, or 33x12.50R17). This is the 'Goldilocks' size for overlanding because: 1) Fits most 4x4 vehicles with 2-3 inch lift (affordable suspension upgrade), 2) Provides meaningful ground clearance improvement (+1-1.5 inches vs stock), 3) Maintains reasonable highway fuel economy (-1 to -2 MPG penalty vs stock), 4) Doesn't require expensive drivetrain regearing, 5) Widely available globally for remote tire replacements, 6) Proven on thousands of Pan-American Highway, Trans-Africa, and Outback expeditions. Larger 35-37 inch tires are overkill for 95% of overlanding and hurt reliability, fuel range, and drivability. Stick with 33s unless you're doing serious rock crawling.

YES - Load Range E (10-ply) tires are HIGHLY RECOMMENDED for serious overlanding. Here's why: LOAD CAPACITY: Overlanding adds 500-1,000 lbs of gear (roof rack, water jerry cans, tools, recovery equipment, camping gear, spare parts). Load Range E handles this weight safely. PUNCTURE RESISTANCE: 10-ply construction and reinforced sidewalls prevent punctures from sharp rocks, thorns, and debris common on remote trails. AIRED-DOWN CAPABILITY: Stronger sidewalls allow safe airing down to 15-18 PSI for sand/mud without risking pinch flats or sidewall damage. DURABILITY: Expedition travel puts thousands of miles on rough terrain - Load Range E lasts significantly longer. ONLY use Load Range C/D tires if: 1) Weekend warrior/casual off-roading, 2) Mostly paved overlanding (Iceland Ring Road, etc.), 3) Budget constraints. For multi-week expeditions in remote areas, Load Range E is mandatory insurance.

ALL-TERRAIN (AT) tires are BETTER for 90% of overlanding. Here's the breakdown: ALL-TERRAIN PROS: 1) Quiet highway ride (60-70% of overlanding is pavement/dirt roads), 2) Better fuel economy (crucial for remote fuel planning), 3) Longer tread life (50,000-60,000 miles vs 30,000-40,000 for mud-terrains), 4) Adequate traction for dirt, gravel, moderate mud, sand, and rocky trails, 5) Better wet pavement safety. CHOOSE MUD-TERRAIN (MT) ONLY IF: 1) 80%+ of your driving is extreme off-road, 2) Regular deep mud or rock crawling, 3) You're willing to tolerate LOUD cabin noise (70-80 dB on highway), 4) You accept -3 to -4 MPG fuel penalty. BEST OVERLANDING ATs: BFGoodrich KO2, Falken Wildpeak AT3W, Goodyear DuraTrac RT. BEST HYBRID (if you want aggressive but not MT): Nitto Ridge Grappler, General Grabber X3. Bottom line: AT tires handle 95% of global overland routes perfectly while being much more pleasant for the long highway stretches.

Proper tire pressure adjustment is CRITICAL for overlanding success. Follow these guidelines: HIGHWAY/PAVEMENT: 32-40 PSI (check door jamb or tire sidewall max). Use this for highway travel between destinations. DIRT/GRAVEL ROADS: 28-32 PSI. Improves ride comfort over washboard roads, better traction on loose gravel. Still safe for 40-50 MPH speeds. SAND (beach, desert dunes): 18-22 PSI. Maximum flotation to prevent digging in. Go as low as 15 PSI for soft dunes, but drive SLOW (under 20 MPH). MUD (moderate, not deep): 22-25 PSI. Self-cleaning tread, better traction without risking de-beading. ROCKY TERRAIN: 25-28 PSI. Improves grip and comfort, but too low risks sidewall punctures on sharp rocks. CRITICAL RULES: 1) ALWAYS re-inflate before returning to highway (overheating risk), 2) Carry portable air compressor (ARB, VIAIR, or Smittybilt), 3) Check pressure when tires are COLD, 4) Lower pressure = slower driving speeds (risk of de-beading or overheating), 5) Beadlock wheels needed only if going under 15 PSI regularly.

NO - 35 inch tires (315/70R17, 35x12.50R17) require SIGNIFICANT modifications for safe overlanding: REQUIRED MODIFICATIONS: 1) 3.5-4 inch suspension lift ($1,500-3,000 installed), 2) Drivetrain regearing to 4.56-5.13 ratio ($1,500-2,500 per axle) - CRITICAL for maintaining performance and fuel economy, 3) Possible brake upgrades (larger rotors/calipers), 4) Upgraded CV axles/driveshafts to handle stress, 5) Speedometer/odometer recalibration, 6) Possible fender trimming or aftermarket fenders. REAL-WORLD IMPACTS: 1) -3 to -4 MPG fuel economy (huge issue for remote fuel planning), 2) Severely reduced acceleration without regearing (dangerous for highway merging), 3) Increased stress on transmission, transfer case, differentials, 4) Longer stopping distances (heavier rotating mass). WHO SHOULD RUN 35s: Dedicated rock crawlers, extreme terrain explorers who rarely drive highway, unlimited budgets. BETTER CHOICE: 33 inch tires provide 90% of the capability for 25% of the cost and complexity. Stick with 33s unless you have specific terrain needs requiring 35s.

For INTERNATIONAL overlanding (Africa, South America, Central Asia), tire choice affects trip success: TIER 1 - GLOBAL AVAILABILITY: 1) BFGoodrich All-Terrain T/A KO2: Available in 100+ countries. Proven on every continent. Replacement tires found even in remote areas. Industry standard. 2) Goodyear Wrangler AT/RT: Major global brand. Wide distribution in Africa, Middle East, South America. 3) General Tire Grabber: Strong presence in developing countries, especially Africa and South America. TIER 2 - GOOD BUT LIMITED AVAILABILITY: 4) Falken Wildpeak AT3W: Excellent tire, but harder to find replacements outside USA/Europe/Australia. 5) Nitto Ridge Grappler: Mostly North America/Australia. Limited in Africa/South America. AVOID for international travel: 1) Toyo (limited global distribution), 2) Cooper (mostly North America), 3) Chinese brands (quality concerns in extreme conditions). PRO TIPS: 1) Carry TWO full-size spares for trans-continental travel, 2) Research tire availability in your destination countries before purchase, 3) Join overlanding forums for real-time intel on where to source tires abroad, 4) BFG KO2 is the 'safe bet' for worldwide travel - you WILL find replacements eventually.

Overlanding gear weight SIGNIFICANTLY affects tire requirements. Here's the reality: TYPICAL OVERLANDING WEIGHT ADDITIONS: 1) Roof rack + RTT (roof-top tent): 150-300 lbs, 2) Water (20 gallons): 160 lbs, 3) Fuel (extra jerry cans, 10 gallons): 60 lbs, 4) Recovery gear (jack, shovel, traction boards, winch): 100-150 lbs, 5) Camping equipment + food: 150-200 lbs, 6) Spare parts + tools: 50-100 lbs, 7) Second spare tire: 80 lbs. TOTAL: 500-1,000 lbs of additional weight on top of passengers! TIRE REQUIREMENTS: 1) Load Range E (10-ply) MANDATORY to safely carry this weight, 2) Load index minimum 115-120 (1,200-1,400 lbs per tire), 3) Increase tire pressure 5-8 PSI above normal when fully loaded (check tire sidewall max), 4) Upgraded suspension (lift + heavy-duty springs/shocks) needed to prevent sagging. REAL CONSEQUENCES OF UNDER-RATED TIRES: Tire failure from overloading (dangerous in remote areas), Excessive tire wear and heat buildup, Poor handling and longer stopping distances, Suspension damage from bottoming out. BOTTOM LINE: Calculate your ACTUAL loaded weight (weigh at truck scale) and spec tires accordingly. Don't cheap out - tire failure 500 miles from civilization is trip-ending.

A quality Tire Pressure Monitoring System (TPMS) is ESSENTIAL for overlanding safety. Best options: BEST OVERALL: TireMinder Smart TPMS ($300-400): 1) Real-time monitoring of all 4 tires (+ spares), 2) Wireless sensors with 5+ year battery, 3) High/low pressure alerts, 4) Temperature monitoring (critical for aired-down driving), 5) Easy sensor removal when airing down/up. BUDGET OPTION: Tymate TPMS ($150-200): 1) Basic pressure/temp monitoring, 2) Solar-powered display, 3) Decent accuracy (±1.5 PSI), 4) Good for weekend warriors. PREMIUM: PressurePro TPMS ($500-600): 1) Military-grade durability, 2) Extreme temperature range (-40°F to 185°F), 3) Used by serious expedition vehicles, 4) Lifetime warranty on display. DIY OPTION: Manual pressure checks with digital gauge ($20-40): 1) ARB or Accu-Gage digital tire gauge, 2) Check pressure every morning (cold tires), 3) Takes 5 minutes, costs almost nothing, 4) Most reliable method (no electronics to fail). PRO TIP: Carry backup method regardless. Electronics fail in remote areas. A quality analog/digital tire gauge ($30-50) is mandatory backup even with TPMS installed.

Beadlock wheels are OPTIONAL for 95% of overlanding. Here's when you need them: WHAT ARE BEADLOCKS: Wheels with external ring that mechanically clamps tire bead to wheel. Prevents tire de-beading when aired down to extreme low pressure (10-15 PSI). YOU NEED BEADLOCKS IF: 1) Regularly air down below 15 PSI (extreme rock crawling, deep sand dunes), 2) Expedition rock crawling (Moab, Rubicon Trail), 3) Racing off-road (Baja, rock crawling competitions), 4) Arctic/desert expeditions requiring ultra-low pressure. YOU DON'T NEED BEADLOCKS IF: 1) Standard overlanding (dirt roads, moderate trails), 2) Airing down to 18-25 PSI (safe range for standard wheels with Load Range E tires), 3) Beach driving at 18-20 PSI, 4) Budget-conscious (beadlocks cost $400-800 EACH). BEADLOCK DOWNSIDES: 1) Expensive ($1,600-3,200 for set of 4), 2) Heavy (adds 10-15 lbs per wheel = worse MPG), 3) Maintenance required (retorque bolts every 500 miles), 4) NOT street-legal in some areas (check local laws), 5) Balance issues if not installed correctly. VERDICT: For typical overlanding, stick with quality standard wheels and keep pressure above 18 PSI. Only invest in beadlocks for extreme specialized use.

Overlanding vehicles need MORE FREQUENT tire rotation than daily drivers: STANDARD RECOMMENDATION: Rotate every 5,000-6,000 miles for even wear. AGGRESSIVE SCHEDULE for long expeditions: Rotate every 3,000-4,000 miles if: 1) Running larger tires (33-35 inches), 2) Heavy roof rack/RTT weight (shifts weight forward), 3) Frequent off-road use (uneven wear from low pressure), 4) Long highway miles between destinations. ROTATION PATTERN: 1) 4-wheel drive vehicles: Use 'rearward cross' pattern (front left → rear right, front right → rear left, rear left → front left, rear right → front right), 2) Include BOTH spare tires in rotation if carrying two spares (critical for international travel), 3) Rotate spare into service every other rotation. SPECIAL CONSIDERATIONS: 1) Directional tires: Can only rotate front-to-back on same side, 2) Staggered sizes (front/rear different): Cannot rotate - need individual replacement, 3) Rotation during expedition: Some overlanders rotate at every oil change as maintenance ritual. CONSEQUENCES OF SKIPPING ROTATION: 1) Front tires wear 30-40% faster (especially 4WD with heavy front weight), 2) Uneven wear causes handling imbalance, 3) Premature tire replacement needed, 4) Safety risk if front tires fail first. CARRY TOOLS: Portable jack, lug wrench, torque wrench (80-100 ft-lbs typical). Rotate tires yourself in camp every 5,000 miles.