Tube Specifications

Size

• Dimensions:

  • 26 x 3.50/4.00/4-1/4
    • Specially designed for extra-wide tires with a width range of 3.50 inches to 4.25 inches. Ideal for fat-tire bicycles and heavy-duty applications requiring large air volume for optimal performance.

• ISO Standard:

  • 559 mm Bead Seat Diameter (BSD):
    • Compatible with 26-inch rims, adhering to the industry standard for wide-format bike wheels.

• Tire Width Range:

  • Supports tires from 3.50 inches to 4.25 inches in width, delivering excellent stability, cushioning, and off-road performance.

Applications

• Bike Types:

  • Fat Bikes: Specifically designed for fat-tire bikes often used in sand, snow, or rugged terrains.
  • Off-Road and Adventure Bikes: Provides the durability and air volume needed for extreme off-road conditions.
  • Electric Bikes (E-Bikes): Works well with E-bikes requiring extra-wide tires for enhanced grip and balance.

• Best Use:

  • Ideal for riders tackling loose, soft terrains (e.g., sand, mud, snow) or seeking extra shock absorption for a smoother ride.

Valve Specifications

1. Type:

   • Schrader Valve:
     • A robust and widely-used valve type, also known as a "car valve." Compatible with most air pumps, including automotive inflators.

2. Length:

   • 33mm:
     • A standard valve length that fits most rims, ensuring accessibility for inflation tools.

3. Core:

   • Removable Valve Core:
     • Allows for the use of tire sealants to quickly address punctures and maintain air pressure.

4. Stem:

   • Smooth Valve Stem:
     • Minimizes friction with the rim and reduces wear, ensuring a secure and damage-free fit.

5. Angle:

   • 0° Straight Valve:
     • Direct alignment with the rim for easy inflation and maintenance.

Material and Construction

1. Material:

   • Premium Rubber:
     • High-grade material offering superior elasticity, air retention, and resistance to wear and tear.

2. Wall Thickness:

   • Heavy-Duty Design:
     • Enhanced durability to handle the stress and pressure of oversized tires on challenging terrains.

3. Construction:

   • Seamless Construction:
     • Eliminates weak points, reducing the risk of tube failure and enhancing longevity.

Performance Features

1. Durability:

   • Withstands the rigors of rugged trails, sharp objects, and abrasive surfaces, ensuring long-lasting performance.

2. Air Retention:

   • The rubber composition minimizes air leakage, requiring less frequent reinflation.

3. Shock Absorption:

   • Large air volume provides superior cushioning, reducing vibrations and improving ride comfort.

4. Enhanced Stability:

   • Wide diameter ensures excellent traction and balance, especially in loose or uneven terrains.

5. Weather Resistance:

   • Performs reliably in extreme temperatures and adverse weather conditions, including snow and mud.

Compatibility

1. Tires:

   • Fits 26-inch tires with widths ranging from 3.50 inches to 4.25 inches, making it ideal for fat bikes and adventure bicycles.

2. Rims:

   • Compatible with rims designed for oversized tires within the 559 mm BSD standard.

3. Pump Compatibility:

   • Works with Schrader-compatible pumps, including automotive inflators and standard bike pumps.

4. Ideal Bikes:

   • Fat-tire bikes, E-bikes, and custom builds requiring high-volume tubes for added durability and cushioning.

Brand: BlackCat

1. Reputation:

   • BlackCat is a trusted brand known for its commitment to quality and performance, offering reliable products for diverse cycling needs.

2. Specialization:

   • Focuses on high-performance tires and tubes, particularly for off-road, fat-tire, and heavy-duty applications.