Ironman
RB-12 NWS
225/70R15
$70.50/tire
$94.00
Set of 4: $282.00
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Specifications
| Size | 225/70R15 RB-12 NWS |
|---|---|
| Width | 225 mm |
| Aspect ratio | 70 |
| Rim diameter | R15 |
| Load index | 100 |
| Speed rating | S |
| Load range | SL |
| Treadwear warranty | 40,000 miles |
|---|---|
| Tread depth | 10.2/32" |
| Weight | 24.91 lbs |
| Max pressure | 44 psi |
| Severe snow (3PMSF) | No |
| Run-flat | No |
About the Ironman RB-12 NWS
All-Season Passenger Car Touring tire. Combination of Contemporary tire technology and Classic White Sidewall Styling.
Features
* Lateral shoulder slots* Square tread profile* M+S Rating* Computer-optimized tread design* 60-Month Limited Protection Policy and Road Hazard Protection Program (US and Canada only)* 40,000 MIle/65,000 km Limited Treadwear Mileage Warranty (US and Canada only)
Benefits
* Improve water dispersion and promote heat dissipation* Maximizes contact area and improves handling stability* Ensures all-season performance and peace-of-mind* Reduces road noise for a quieter, more comfortable ride
Understanding the 225/70R15 size
In the size code 225/70R15, 225 is the section width in millimetres (about 8.9"). 70 is the aspect ratio — the sidewall height is 70% of the width, or roughly 157.5 mm. R15 means radial construction on a 15-inch wheel, giving an approximate overall diameter of 27.4".
The load index 100 means each tire supports up to 1,764 lbs — about 7,056 lbs across a full set of four. The speed symbol S certifies the tire to 112 mph under its rated load. Always match or exceed the load index and speed rating listed on your vehicle's door-jamb placard.
Price and value
At $70.50 per tire, a full set of four costs $282.00. That is about 38% below the average price of the 21 tires we stock in this size. Backed by a 40,000-mile treadwear warranty, that works out to roughly $7.05 per 1,000 miles across the set.
Frequently asked questions
What does the tire size 225/70R15 mean?
225 is the section width in millimetres, 70 is the aspect ratio (sidewall height as a percentage of width, about 157.5 mm), and R15 indicates radial construction for a 15-inch wheel. Overall diameter is approximately 27.4 inches.
What are the load and speed ratings of the Ironman RB-12 NWS 225/70R15?
Its load index of 100 allows up to 1,764 lbs per tire. Its speed rating of S is certified to 112 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 Ironman RB-12 NWS 225/70R15 tires cost?
A single tire is $70.50 and a set of four is $282.00, covered by a 40,000-mile treadwear warranty.
Does the RB-12 NWS come in other sizes?
Yes — we stock 8 additional RB-12 NWS sizes besides 225/70R15. Fit only a size approved for your vehicle.
Other sizes of this model
Similar tires in 225/70R15