Dunlop
Dunlop Grandtrek AT20 Tires
all-seasonAll-Terrain
The Dunlop Grandtrek AT20 (available in 2 sizes) is a all-terrain tire for year-round road use. Built for trucks that require the listed tire size, with a 113 load index and s speed rating where applicable.
Key Features
- Sizes available: 2 (265/70R17, 225/60R18)
- Load Index: 113
- Speed Rating: s
- Tread Type: All-Terrain
- Season: all-season
- UTQG: 300BB
- Ply Rating: sl
- Country of Origin: JAPAN
Installing at Road Runner Wheels & Tires
Road Runner Wheels & Tires can mount and balance your tires, service TPMS sensors when needed, and help confirm the correct tire size for your vehicle.
Send your year, make, and model before ordering so we can confirm this tire size is correct for your vehicle. Call (678) 400-6467 or (678) 400-6467.
The Dunlop Grandtrek AT20 is an all-terrain (A/T), all-season, all-weather tire. Standard-load (SL) construction.
Daily drivers who also run gravel, dirt, and the occasional trail need a tire that balances quiet pavement manners with real off-road grip. The Dunlop Grandtrek AT20 in 225/60-18 is a all-terrain option built for confident, real-world performance.
With a load index of 99 and load range sl, it supports the payload demands of passenger cars and crossovers while maintaining a H-speed rating for everyday highway use.
Open tread voids clear dirt and loose debris while a stable center rib keeps highway tracking predictable. Commonly chosen by owners running mixed pavement, gravel, light off-road, and towing, the Grandtrek AT20 bridges the gap between capability and comfort.
Load range sl and a maximum load capacity of 1709 lbs lbs make it suitable for passenger cars and crossovers carrying gear, equipment, or cargo without frequent pressure adjustments.
| Manufacturer | Dunlop |
|---|---|
| Tire Line | Grandtrek AT20 |
| Size | 225/60-18 |
| Section Width (mm) | 225 |
| Aspect Ratio | 60 |
| Rim Diameter | 18" |
| Load Index | 99 |
| Speed Rating | H |
| Load Range / Ply | sl |
| UTQG | 300BA |
| Max Load | 1709 lbs |
| Season | all-season |
| Tread Type | AT |
| Run-Flat | No |
| Sidewall | Black Sidewall |
| Country of Origin | JAPAN |
| Manufacturer Part Number | 57000000 |
| UPC / GTIN | 848983035837 |
| Free Shipping | Yes — Continental US |
Wet Traction80/100
Dry Handling85/100
Tread Life88/100
Ride Comfort78/100
Scoring blended from manufacturer specs and tread design. Real-world results vary by vehicle, alignment, load, and conditions.
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Bought these? Call us at (678) 400-6467Dunlop Grandtrek AT20 — Frequently Asked Questions
What sizes of the Dunlop Grandtrek AT20 does Road Runner carry?
You'll find the Dunlop Grandtrek AT20 in stock in 17" to 18" — so most truck or SUVs can be fitted or shipped fast. Don't see your size listed? Call 678-400-6467 and we'll source it.
Can Road Runner install my Dunlop Grandtrek AT20 the same day?
Usually, yes. We mount, balance, and install in our shop, often same-day. Out-of-state? We ship your Dunlop Grandtrek AT20 straight to your door.
Will the Dunlop Grandtrek AT20 fit my truck or SUV?
Enter your year, make, and model in our fitment tool, or call 678-400-6467. We confirm the exact Dunlop Grandtrek AT20 size and load rating for your truck or SUV before you buy, so it fits right the first time.
Is the Dunlop Grandtrek AT20 good for both highway and off-road?
Yes — the Dunlop Grandtrek AT20 is an all-terrain designed to balance smooth, quiet highway miles with real traction on dirt, gravel, and light off-road. It's a great all-around choice for trucks and SUVs that see a mix of pavement and trail.
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