515/45-15 Street Pro Blackwall Tire
Pro-Trac tires are an excellent choice for pro-street or wide hot rod tires. These huge tires give your ride a race-ready look and stance without the fear of getting caught in the rain riding around on a set of full-on slicks (we know you've been there). These Pro-Trac tires are DOT approved bias ply tires and they're perfect for a car that is mini-tubbed. The tread pattern has been thoroughly tested to ensure safety in dry and wet conditions. Put your ride back on the road with a new set of Pro Trac tires and be sure to check out the front runners, too!
Blackwall Tire
Since the introduction of carbon black rocked the tire industry, the original recipe for most tires has been a solid black sidewall. For classics and collector cars alike, it's hard to beat the no-nonsense appeal of a classic blackwall style tire. British sports car, classic truck and even hot rod enthusiasts love the way a nice period correct blackwall tire looks on their vehicles.
Bias Ply Construction
Bias ply tire construction is a method that was used from the 1900's through the 1970's on passenger cars and light trucks. Bias ply tires feature ply cords that run at a 45 degree angle to the bead, and overlap in a crisscross pattern, depending on how many ply layers are used. This creates a strong tire, but bias ply tires have a tendency to follow breaks or ruts in the pavement. Bias ply tires are the most authentic choice for classic car restorations and traditional hot rod builds. Coker Tire offers a huge variety of bias ply tires for many applications.
Pro-Trac Street Pro Tires
Take a trip back to the 1970’s with Pro Trac Street Pro tires. These iconic bias ply tires feature custom sizing to fit ‘70s street machines and Pro Street builds. With skinny front runners and giant rear tires, there are plenty of options to get your old school combination rolling.
Pro-Trac- Brand Tires
The iconic Pro-Trac brand bias Ply tires were born on ‘70s street machines and Pro Street builds. Famously a groovy day Two option for serious enthusiasts of the era. The brand now offers both original bias ply fitments and innovative new ultra-high performance radials with all of the classic day two style that made the brand a street legend.
Please Note
- Tire mounted on wheel for demonstration purposes only. Wheel and other accessories are not included. Please note that dimensions listed (tread width, section width and overall diameter) are non-scientific and based on an inflated tire, mounted to a wheel. Dimensions may vary due to rim width and inflation pressure.
| SKU | 72199 |
|---|---|
| Weight | 78.000000 |
| Construction Ply | POLY/FIBERGLASS |
| Brand | Pro-Trac |
| Drag Tire Type | Street | DOT |
| Tube Type or Tubeless | Tubeless |
| Tire Series | Street Pro |
| Tire Construction | Bias Ply |
| Rim Diameter | 15 inch |
| Sidewall Style | Blackwall |
| Width Bias Ply | 515/45 |
| Product Size | 515/45-15 |
| GTIN | 00842199101003 |
| Section Width (IN) | 20.7 |
| Rim Width (in) | 14.00 - 16.00 |
| Overall Diameter (IN) | 32.8 |
| Availability Date | 2026-10-30T00:00:00Z |
This Pro-Trac Street Pro comes in the 515/45-15 size, suitable for the classic and collector vehicles listed below.
About the 515/45-15 Tire Size
The 515/45-15 size is a specialized fitment used for select classic and collector vehicle applications. On this product page, the Pro-Trac Street Pro is offered in 515/45-15 as a bias ply tire, making the size association especially relevant when comparing period-style fitment options. For more detailed information on this tire size, explore the 515/45-15 tire on Coker Tire Fitment Guide.
Frequently Asked Questions
Fitment & Compatibility ▼
What wheel width is required for the Pro-Trac Street Pro 515/45-15 to fit correctly? ▼
The Pro-Trac Street Pro 515/45-15 requires a wheel width between 14 and 16 inches for proper mounting and performance. This range ensures the sidewall maintains its intended shape and the contact patch remains stable.
Running this tire on a narrower wheel will distort the sidewall, reducing traction and increasing heat buildup. A wider wheel within the approved range helps stabilize the large footprint, improving straight-line performance and reducing sidewall flex during acceleration.
Tire Size Equivalents & Conversions ▼
What does the Pro-Trac Street Pro 515/45-15 size mean in practical terms? ▼
The 515/45-15 size indicates a very wide bias ply tire with a nominal width of 515 millimeters equivalent and a 15 inch rim diameter. The “45” reflects a low aspect ratio relative to its width, though bias ply sizing differs from modern radial conventions.
In real terms, this tire delivers a massive 20.7 inch section width and a tall 32.8 inch overall diameter. This combination creates a large footprint for traction while maintaining a tall sidewall for classic Pro Street aesthetics.
Performance & Use Case ▼
How will the Pro-Trac Street Pro 515/45-15 perform on the street? ▼
The Pro-Trac Street Pro 515/45-15 is DOT approved and designed for street use, offering a balance between traction and usability. Its tread pattern allows for driving in both dry and wet conditions.
However, as a bias ply tire, it may follow road grooves and feel less stable than modern radials. It is best suited for occasional street use rather than daily commuting.
Is the Pro-Trac Street Pro 515/45-15 suitable for highway driving? ▼
The Pro-Trac Street Pro 515/45-15 can be used on highways, but bias ply construction introduces tracking behavior. The tire may follow grooves and require more steering correction.
Heat buildup should also be monitored during extended highway use. Maintaining correct inflation pressure helps reduce excessive heat and improves stability.
What type of construction does the Pro-Trac Street Pro 515/45-15 use? ▼
The Pro-Trac Street Pro 515/45-15 uses bias ply construction with polyester and fiberglass plies. This creates a strong, flexible tire structure.
Bias ply design contributes to durability and traction under load, but also introduces more sidewall movement compared to radial tires.
Construction, Durability & Load Capacity ▼
Does the Pro-Trac Street Pro 515/45-15 require special mounting considerations? ▼
The Pro-Trac Street Pro 515/45-15 requires careful mounting due to its size and bias ply construction. Professional installation is recommended.
Proper bead seating and alignment are critical. The large sidewalls require attention to avoid imbalance or vibration.
What long-term maintenance considerations apply to the Pro-Trac Street Pro 515/45-15? ▼
Long-term maintenance includes monitoring wear, maintaining pressure, and inspecting for damage. The Pro-Trac Street Pro 515/45-15 benefits from regular checks.
Pay attention to heat cycles and road use frequency. Proper care ensures consistent performance and extended lifespan.
Installation & Maintenance ▼
Does the Goodyear Steelgard RWL GR70-15 require tubes for installation? ▼
The Goodyear Steelgard RWL GR70-15 is a tubeless tire, meaning it does not require an inner tube when mounted on compatible wheels. Proper sealing between the tire and rim ensures air retention.
Wheels must be in good condition to support tubeless installation. Damaged or corroded rims may require repair to maintain proper sealing.
How should the Goodyear Steelgard RWL GR70-15 be stored when not in use? ▼
The Goodyear Steelgard RWL GR70-15 should be stored in a cool, dry environment away from direct sunlight. Proper storage prevents rubber degradation.
Keeping tires clean and properly positioned helps maintain condition. Avoid exposure to extreme temperatures for best longevity.
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