Description

BlackHawk BAR26 255/70 R22.5 140/137M TL 16PR is a premium all-position commercial tire engineered for regional highway applications. Below is a comprehensive overview of its specifications, features, and applications:

1. Tire Brand and Model: BlackHawk BAR26

• BlackHawk: A tire brand known for producing high-quality, durable tires for commercial and heavy-duty vehicles. BlackHawk tires are often used in demanding applications, such as long-haul trucking, construction, and public transportation.
• BAR26: This is the specific model within the BlackHawk lineup. The BAR26 is designed for steer and all-wheel positions on trucks and buses, offering a balance of durability, traction, and fuel efficiency.

2. Tire Size: 255/70 R22.5

• 255: This is the section width of the tire, measured in millimeters. It refers to the width of the tire from one sidewall to the other when mounted and inflated to the recommended pressure. In this case, the tire is 255 mm wide.
• 70: This is the aspect ratio, which is the height of the tire's sidewall expressed as a percentage of the section width. A ratio of 70 means the sidewall height is 70% of the tire's width (255 mm). This results in a sidewall height of approximately 178.5 mm.
• R: Indicates the tire's construction type. "R" stands for Radial, meaning the tire's internal plies run radially across the tire from bead to bead. Radial tires are the standard for modern commercial vehicles due to their superior stability, fuel efficiency, and tread life compared to bias-ply tires.
• 22.5: This is the rim diameter in inches. The tire is designed to fit a 22.5-inch wheel, which is a common size for heavy-duty trucks and buses.

3. Load Index and Speed Rating: 140/137M

• 140/137: These numbers represent the load index, which indicates the maximum load capacity of the tire at its maximum inflation pressure.
  • The first number (140) applies when the tire is used in a single configuration (e.g., on the front axle of a truck). A load index of 140 corresponds to a maximum load capacity of 2,500 kg (5,512 lbs) per tire.
  • The second number (137) applies when the tire is used in a dual configuration (e.g., on the rear axle of a truck, where tires are mounted in pairs). A load index of 137 corresponds to a maximum load capacity of 2,300 kg (5,071 lbs) per tire.
• M: This is the speed rating, which indicates the maximum speed the tire can safely sustain under load. A speed rating of "M" corresponds to 130 km/h (81 mph). This makes the tire suitable for highway driving and long-haul applications where maintaining consistent speeds is important.

4. Tire Type: TL

• TL: Stands for Tubeless. Tubeless tires do not require an inner tube to hold air. Instead, they rely on an airtight seal between the tire and the rim to maintain pressure. Tubeless tires offer several advantages:
  • Reduced risk of sudden air loss in case of a puncture.
  • Easier maintenance and repair.
  • Lower overall weight, which can improve fuel efficiency.

5. Ply Rating: 16PR

• 16PR: This indicates the tire has a 16-ply rating. The ply rating refers to the tire's strength and load-carrying capacity, not the actual number of plies in the tire. Modern tires use advanced materials (such as steel belts and high-strength textiles) to achieve the same strength as older tires with multiple plies.
  • A 16-ply rating means the tire is designed to handle extremely heavy loads and is suitable for demanding applications, such as long-haul trucking, construction, and public transportation.

6. Tread Design and Features of BlackHawk BAR26 255/70 R22.5 140/137M TL 16PR

The BlackHawk BAR26 is designed with a tread pattern optimized for steer and all-wheel positions. Key features of the tread design include:

• Ribbed Tread Pattern: Provides excellent stability and straight-line tracking, which is crucial for steering axles.
• Deep Grooves and Sipes: Enhance traction on wet and slippery surfaces, reducing the risk of hydroplaning.
• Stone Ejectors: Help prevent stones and debris from becoming lodged in the tread, reducing the risk of damage.
• Wide Shoulder Blocks: Improve cornering stability and reduce shoulder wear, extending the tire's lifespan.

7. Applications of BlackHawk BAR26 255/70 R22.5 140/137M TL 16PR

The BlackHawk BAR26 255/70 R22.5 is designed for use on:

• Heavy-Duty Trucks: Suitable for long-haul, regional, and urban delivery trucks.
• Buses: Ideal for city buses, coaches, and school buses.
• Construction Vehicles: Can be used on vehicles operating in demanding environments, such as construction sites.

8. Performance Characteristics of BlackHawk BAR26 255/70 R22.5 140/137M TL 16PR

• Durability: The 16-ply rating and robust construction make the tire highly resistant to cuts, punctures, and abrasions.
• Fuel Efficiency: The radial construction and optimized tread design help reduce rolling resistance, improving fuel economy.
• Load Capacity: With a load index of 140/137, the tire can handle heavy loads, making it suitable for fully loaded trucks and buses.
• Comfort: The tire's design helps reduce road noise and vibrations, providing a smoother ride for drivers and passengers.

9. Maintenance and Care: BlackHawk BAR26 255/70 R22.5 140/137M TL 16PR

To maximize the lifespan and performance of the BlackHawk BAR26:

• Regular Inspections: Check for signs of wear, damage, or uneven tread wear.
• Proper Inflation: Maintain the recommended tire pressure to ensure optimal performance and load capacity.
• Rotation and Alignment: Regularly rotate the tires and ensure proper wheel alignment to prevent uneven wear.

10. Summary of Key Specifications: BlackHawk BAR26 255/70 R22.5 140/137M TL 16PR