Recommended Size -40-21 Accelera Tires
Best value
The lowest priced tire with an easy test score® of 'Great' or better
Top rated
The tire with the highest easy test score®
Accelera Iota ST68 265/40R21XL 105Y BSW
35K Mile Warranty
Ultra High Performance All Season
- Truck/SUV
Accelera Iota ST68 285/40R21XL 109W BSW
35K Mile Warranty
Ultra High Performance All Season
- Truck/SUV
Accelera Iota ST68 255/40R21XL 102V BSW
35K Mile Warranty
Ultra High Performance All Season
- Truck/SUV
Accelera Iota ST68 255/40R21XL 102W BSW
35K Mile Warranty
Ultra High Performance All Season
- Truck/SUV
Ultra High Performance All Season
- Truck/SUV - All Terrain
Accelera Iota ST68 275/40R21XL 107Y BSW
35K Mile Warranty
Ultra High Performance All Season
- Truck/SUV
Ultra High Performance All Season
- Truck/SUV - All Terrain
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Compare tires at a glance using our easy test score® system. Our proprietary algorithm factors in performance, expert insights, user reviews, and Uniform Tire Quality Grading (UTQG) scores.
Four criteria factor into easy test score®
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Consumer reviews
Research based on customer reviews and buying behavior
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Treadwear
The lifespan of a tire based on wear performance
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Traction
The ability of a tire to grip to the road in wet conditions
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Expert ratings
Input from veteran tire industry experts
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