M122
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Specifications
| Size | 255/70R22.5 H M122 |
|---|---|
| Width | 255 mm |
| Aspect ratio | 70 |
| Rim diameter | R22.5 |
| Load index | 140/137 |
| Speed rating | L |
| Ply rating | 16 |
| Tread depth | 17/32" |
|---|---|
| Weight | 88 lbs |
| Max pressure | 120 psi |
| Severe snow (3PMSF) | No |
| Run-flat | No |
About the Toyo M122
Commercial Truck/Bus. Medium-Duty Truck All-Position Radial tire Suitable for both Steer and Trailer Position Use, designed Specifically for Local Delivery and Regional Haul Applications.
Features
* Traction and steering performance* Durability* Enhanced retreadability* Toyo Truck Tire Limited Warranty and Casing Policy
Benefits
* Five rib, four-groove design with 17/32 tread depth improves stability and handling performance* DSOC IITM technology optimizes design for even wear and long life * Wide five rib pattern for optimum performance* Stone ejector grooves minimize stone retention to maintain casing integrity * Four Steel Belt Construction braces the tread area for improved mileage, resistance to irregular wear and reduced rolling resistance* Improved casing profile and compounding provides increased resistance to fatigue, longer casing life and improved retreadability
Understanding the 255/70R22.5 size
In the size code 255/70R22.5, 255 is the section width in millimetres (about 10"). 70 is the aspect ratio — the sidewall height is 70% of the width, or roughly 178.5 mm. R22.5 means radial construction on a 22.5-inch wheel, giving an approximate overall diameter of 36.6".
The speed symbol L certifies the tire to 75 mph under its rated load. Always match or exceed the load index and speed rating listed on your vehicle's door-jamb placard.
What the Toyo M122 is built for
Fitment category: Commercial Truck/Bus.
Price and value
At $305.08 per tire, a full set of four costs $1220.32. That is about 23% below the average price of the 4 tires we stock in this size.
Frequently asked questions
What does the tire size 255/70R22.5 mean?
255 is the section width in millimetres, 70 is the aspect ratio (sidewall height as a percentage of width, about 178.5 mm), and R22.5 indicates radial construction for a 22.5-inch wheel. Overall diameter is approximately 36.6 inches.
What are the load and speed ratings of the Toyo M122 255/70R22.5?
Its speed rating of L is certified to 75 mph. Check your door-jamb placard and do not fit a tire rated below the vehicle's requirement.
How much does a set of 4 Toyo M122 255/70R22.5 tires cost?
A single tire is $305.08 and a set of four is $1220.32.
Does the M122 come in other sizes?
Yes — we stock 4 additional M122 sizes besides 255/70R22.5. Fit only a size approved for your vehicle.