Clearance under articulation
Test compression and steering clearance; static parking-lot clearance is not enough.
Tire category guide
Off-Road Tire Sizes
Off-road tire sizes need enough sidewall and clearance for the terrain without compromising steering, braking, gearing, or driveline operation. Product membership here requires explicit all-terrain, rugged-terrain, mud-terrain, or related catalog data, not dimensions alone.
24 indexed sizes 8 featured exact-size products Data-backed membership
Selection guide
Important Off-Road tire considerations
Tread for the terrain
All-terrain suits mixed mileage, while mud-terrain favors loose surfaces and accepts more noise and weight.
Airing down
Use appropriate wheels, pressures, and load limits; never apply trail pressure to highway driving.
Driveline impact
Large diameter and mass changes affect gearing, braking, wheel bearings, and spare-tire strategy.
Indexed fitments
Common Off-Road tire sizes
Open a size for nominal dimensions, verified fitment examples, exact-size products, alternatives, and safety limitations.
- 275/65R18 32.1 in nominal diameter 25 matching products
- 265/70R17 31.6 in nominal diameter 21 matching products
- 275/60R20 33.0 in nominal diameter 20 matching products
- 285/70R17 32.7 in nominal diameter 19 matching products
- 275/55R20 31.9 in nominal diameter 16 matching products
- 265/65R18 31.6 in nominal diameter 15 matching products
- 275/70R18 33.2 in nominal diameter 14 matching products
- 265/60R18 30.5 in nominal diameter 11 matching products
- 315/70R17 34.4 in nominal diameter 10 matching products
- 305/55R20 33.2 in nominal diameter 10 matching products
- 285/75R16 32.8 in nominal diameter 8 matching products
- LT265/75R16 31.6 in nominal diameter 8 matching products
- 285/55R20 32.3 in nominal diameter 6 matching products
- 225/65R17 28.5 in nominal diameter 5 matching products
- 285/65R20 34.6 in nominal diameter 5 matching products
- 235/65R17 29.0 in nominal diameter 4 matching products
- 235/60R18 29.1 in nominal diameter 3 matching products
- 245/60R18 29.6 in nominal diameter 3 matching products
- 255/55R19 30.0 in nominal diameter 3 matching products
- 305/70R18 34.8 in nominal diameter 2 matching products
- 215/55R17 26.3 in nominal diameter 1 matching product
- 235/55R18 28.2 in nominal diameter 1 matching product
- 225/55R17 26.7 in nominal diameter 1 matching product
- 205/60R16 25.7 in nominal diameter 1 matching product
Category membership comes from the size’s explicit editorial category and exact product category/season metadata. It is not inferred from dimensions alone, and one size may appear in multiple supported hubs.
Manufacturer catalog coverage
Available Off-Road tire products
Each row is an exact product-size combination in the indexed manufacturer data.
- Goodyear Discoverer Road+Trail AT 275/65R18
- Goodyear Discoverer Road+Trail AT 265/70R17
- Goodyear Discoverer Road+Trail AT 275/60R20
- Goodyear Discoverer Rugged Trek LT 285/70R17
- Goodyear Discoverer Road+Trail AT 275/55R20
- Goodyear Discoverer Road+Trail AT 265/65R18
- Goodyear Discoverer Rugged Trek LT 275/70R18
- Goodyear Discoverer Road+Trail AT 265/60R18
Side-by-side research
Popular Off-Road tire comparisons
Check diameter, width, sidewall, clearance, and speedometer changes.
Fitment tools
Relevant calculators
Learn before buying
Relevant tire guides
How tire-size calculations work Review nominal diameter, sidewall, circumference, and source methodology. Browse every indexed tire size Move across the complete tire-size library and its primary categories. Fitment and safety limitations Understand why size math does not replace vehicle-specific fitment checks.
Fitment limitations
A category label describes intended use, not guaranteed vehicle fitment. Confirm the door placard, approved wheel width, load index, speed rating, wheel offset, suspension clearance, and manufacturer guidance before changing size or construction.