The 275/55R21 has an overall diameter of 83.6 cm. The T&RA recommended rim width for a 275mm section width is 8–10 inches, with a measuring rim of 9 inches. This page lists 72 compatible alternatives within 3% of the original diameter. Sizes are organized by wheel diameter. Within each section, the closest match per treadwidth is shown in italics. All sizes are theoretical and there may not be an actual production tire for the size.
This is a light truck (LT) size. Most tire retailers include both passenger-metric and LT-metric tires when searching this size — for example, searching 275/55R21 will typically surface LT275/55R21 results as well. Load range and ply rating vary between metric types; verify the load index matches your vehicle's requirements before purchasing.
275/55R21 Specifications
Current Tire Pricing
| Tire | Size | Price/Tire |
|---|---|---|
| Michelin Defender LTX M/S2Highway All-Season | 275/55R21 | $395.99 |
| Yokohama Geolandar A/T4On-Road All-Terrain | 275/55R21 | $455.99 |
Price availability updated May 2026. Actual prices may vary.
Tire Recommendations
Ultra High Performance All-Season
Year-round daily driving with performance capability
Grand Touring All-Season
Comfortable, long-wearing all-season tires for daily driving
On-Road All-Terrain
Pavement-primary with light off-road and gravel capability
Bridgestone Dueler A/T Ascent
Treadwear: None
Vredestein Pinza AT
Treadwear: 620
Off-Road All-Terrain
Adventure-ready traction for both trails and pavement
BFGoodrich All-Terrain T/A KO3
Treadwear: None
Falken WildPeak A/T4W
Treadwear: None
Goodyear Wrangler Workhorse AT2
Treadwear: None
BFGoodrich All-Terrain T/A KO2
Treadwear: None
General Grabber A/TX
Treadwear: None
Rugged All-Terrain
Aggressive off-road capability with acceptable on-road manners
Goodyear Wrangler Duratrac RT
Treadwear: None
Cooper Discoverer Rugged Trek
Treadwear: None
Toyo Open Country R/T Trail
Treadwear: None
Off-Road Max Traction
Maximum off-road traction for serious rock, mud, and trail use
How to Use This Information
- Stay within 3%: All listed tire sizes maintain proper speedometer accuracy and vehicle dynamics
- Consider aspect ratio: Lower numbers mean shorter sidewalls (better handling, harsher ride)
- Treadwidth matters: Wider tires typically offer more grip but may reduce fuel economy
- Check clearance: Ensure your vehicle has adequate wheel well and suspension clearance
Want to look up compatibility for a different tire size? Use our tire size compatibility lookup