Finding the right 33 inch tire for a 20 inch rim isn’t just about size; it’s about balancing on-road manners, off-road capability, tread life, and noise. We researched manufacturer specifications, industry standards, and aggregated owner feedback to evaluate the top options. Whether you need an aggressive mud-terrain or a quiet all-terrain, our guide compares the key trade-offs so you can choose the best tire for your truck or SUV.
| Photo | Product | Score | Buy |
|---|---|---|---|
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Nitto Ridge Grappler Best Hybrid All-Terrain 33×12.50R20, Load Range E, 3-ply sidewall |
9.0 | 🛒 Check Price |
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BFGoodrich All-Terrain T/A KO2 Best Off-Road All-Terrain 33×12.50R20, Load Range E, 3-ply sidewall |
8.7 | 🛒 Check Price |
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Toyo Open Country A/T III Best Highway All-Terrain 33×12.50R20, Load Range E, 2-ply sidewall |
8.4 | 🛒 Check Price |
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Mickey Thompson Baja Boss A/T Best for Off-Road Performance 33×12.50R20, Load Range E, 3-ply sidewall |
8.1 | 🛒 Check Price |
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Cooper Discoverer STT Pro Best Mud-Terrain 33×12.50R20, Load Range E, 3-ply sidewall |
7.8 | 🛒 Check Price |
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Michelin Defender LTX M/S2 Best Highway Touring 275/60R20 (approx 33 inch diameter), Load Range SL |
7.3 | 🛒 Check Price |
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Nitto Trail Grappler M/T Best Extreme Off-Road 33×12.50R20, Load Range E, 3-ply sidewall |
7.1 | 🛒 Check Price |
1. Nitto Ridge Grappler: Best Hybrid All-Terrain
In our evaluation, the Nitto Ridge Grappler stands out as a versatile hybrid that does most things well. Owner feedback consistently praises its ability to handle mud, sand, and rocks while remaining composed on the highway. The 3-ply sidewall adds confidence when airing down for off-road use. However, it is not the lightest tire in this category, and some drivers report a slight hum at higher speeds compared to dedicated highway all-terrains.
This tire is ideal for those who spend a mix of time on pavement and off the beaten path but want to avoid the drone of a full mud-terrain. If your driving is primarily highway and you rarely leave pavement, a lighter all-terrain like the Michelin Defender LTX may serve you better and save weight.
- Hybrid tread pattern blends all-terrain and mud-terrain features for balanced on/off-road performance.
- 3-ply sidewall construction enhances puncture resistance for rocky trails.
- Staggered shoulder lugs improve traction in soft terrain while maintaining a quiet highway ride.
Pros: Excellent off-road traction without excessive road noise.; Long tread life compared to pure mud-terrain tires.
Cons: Heavier than some all-terrain options, which can affect fuel economy.
2. BFGoodrich All-Terrain T/A KO2: Best Off-Road All-Terrain
We compared the BFGoodrich KO2 against other all-terrains and found it to be the most rugged option for serious off-roaders. Its 3-ply sidewall and aggressive shoulder lugs deliver outstanding traction in rocks and mud, while the tread compound holds up well on gravel roads. Owner feedback highlights its longevity, with many reporting 50,000+ miles. The trade-off is a slightly stiffer ride and more road noise than a touring all-terrain.
The KO2 is best for drivers who regularly tackle moderate to difficult off-road trails and need a tire that can take abuse. If you prioritize a quiet, comfortable highway ride and do light off-roading, you may prefer the Nitto Ridge Grappler or Toyo Open Country A/T III.
- CoreGard technology extends sidewall toughness for rock and brush protection.
- Serrated shoulder design provides extra grip in mud and snow.
- Stone ejectors in tread grooves prevent stone drilling and retention.
Pros: Exceptional durability and puncture resistance.; Reliable snow and mud traction with the 3-peak mountain snowflake rating.
Cons: Firmer ride on pavement compared to some competitors.
3. Toyo Open Country A/T III: Best Highway All-Terrain
In our research, the Toyo Open Country A/T III emerged as a top choice for drivers who spend most of their time on pavement but still want occasional light off-road capability. Owner reviews frequently mention its low noise levels and smooth ride, even at highway speeds. The tread pattern is designed to repel stones and mud, which helps maintain balance. However, its 2-ply sidewall is less resistant to cuts and punctures than 3-ply competitors.
This tire is ideal for daily drivers and overlanders who stick to graded roads and fire trails. If you need serious rock crawling or deep mud performance, consider a more aggressive tire like the BFGoodrich KO2 or a dedicated mud-terrain.
- Dual sidewall design offers a choice between a rugged or sleek look.
- Variable pitch tread pattern reduces road noise for a quiet ride.
- Stone and mud ejectors keep the tread clean for consistent traction.
Pros: One of the quietest all-terrain tires on the highway.; Good wet traction and hydroplaning resistance.
Cons: Less aggressive off-road traction than the KO2 or Ridge Grappler.
4. Mickey Thompson Baja Boss A/T: Best for Off-Road Performance
We evaluated the Mickey Thompson Baja Boss A/T as a dedicated off-road performer that blurs the line between all-terrain and mud-terrain. Its aggressive tread and 3-ply sidewall provide exceptional grip in challenging conditions, and owner feedback confirms its ability to self-clean in thick mud. The trade-off is increased road noise and a stiffer ride, making it less comfortable for long highway trips.
This tire is best for off-road enthusiasts who prioritize traction over comfort and don’t mind the extra noise. If you primarily drive on pavement and occasionally hit trails, a more balanced all-terrain like the Toyo Open Country A/T III would be a better fit.
- PowerPly 3-ply sidewall for extreme cut and puncture resistance.
- Deep, aggressive tread with mud scoops for self-cleaning.
- Reinforced bead area for durability in low-pressure off-road conditions.
Pros: Superior off-road traction in mud and rocks.; Very durable construction for harsh terrain.
Cons: Noticeably louder on pavement than all-terrain tires.
5. Cooper Discoverer STT Pro: Best Mud-Terrain
- Armor-Tek3 3-ply sidewall for enhanced puncture resistance.
- Mud-busting tread pattern with wide grooves for self-cleaning.
- Stone step technology to prevent stone retention in tread.
Pros: Excellent mud traction and self-cleaning ability.; Durable construction for extreme off-road use.
Cons: Very loud on pavement and reduced wet road grip.
6. Michelin Defender LTX M/S2: Best Highway Touring
- EverTread compound for long tread life and even wear.
- Comfort control technology reduces road noise and vibrations.
- Excellent wet braking and hydroplaning resistance.
Pros: Quietest and most comfortable ride in this comparison.; Long tread life with a 70,000-mile warranty.
Cons: Not suitable for off-road use; limited traction in mud or snow.
7. Nitto Trail Grappler M/T: Best Extreme Off-Road
- Aggressive mud-terrain tread with large tread blocks for maximum traction.
- 3-ply sidewall for rock and debris protection.
- Reinforced shoulder lugs for sidewall grip when aired down.
Pros: Unmatched traction in deep mud and rock crawling.; Very durable for extreme off-road conditions.
Cons: Extremely loud on pavement and poor wet road performance.
Frequently Asked Questions
Will 33 inch tires fit on 20 inch rims without a lift?
Yes, 33 inch tires can fit on 20 inch rims, but clearance depends on your vehicle’s suspension and wheel offset. Many trucks and SUVs require at least a leveling kit or minor trimming to avoid rubbing. We recommend checking manufacturer fitment guides or owner forums for your specific model before purchasing.
What is the difference between load range E and load range SL?
Load range E tires have a higher ply rating (10-ply equivalent) and can carry more weight at higher pressures, making them suitable for heavy trucks and towing. Load range SL (standard load) is lighter and offers a softer ride but cannot handle as much weight. For 33 inch tires on 20 inch rims, most off-road and all-terrain options come in load range E for durability.
How do 33 inch tires affect fuel economy and speedometer accuracy?
Larger tires increase rolling resistance and weight, which typically reduces fuel economy by 1-3 mpg. They also change the effective gear ratio, causing the speedometer to read slower than actual speed. You may need to recalibrate your speedometer or use a tuner to correct the reading.
Are 33 inch tires good for daily driving?
Yes, many 33 inch all-terrain tires are designed for daily driving with acceptable noise and ride comfort. However, mud-terrain tires are louder and less comfortable on pavement. If you daily drive your vehicle, consider a hybrid or all-terrain tire like the Nitto Ridge Grappler or Toyo Open Country A/T III.
What is the best tire pressure for 33 inch tires on 20 inch rims?
Optimal tire pressure depends on the tire’s load range and your vehicle’s weight. For load range E tires, typical pressures range from 40-65 psi for on-road use. Always follow the vehicle manufacturer’s recommended pressure or the tire’s sidewall maximum. Off-road, you may air down to 15-25 psi for better traction.
Our Verdict
After researching specs and owner feedback, the Nitto Ridge Grappler earns our top pick for its balanced performance on and off the road, quiet ride, and durable 3-ply sidewall. For drivers who prioritize highway comfort and light off-road use, the Toyo Open Country A/T III is an excellent runner-up with a quieter ride and good value.
