Built for wide-tire performance and demanding riding conditions, this 26 x 4.0 bicycle inner tube is made from premium butyl rubber to deliver excellent air retention and long-term durability. Its reinforced rubber compound enhances puncture resistance, helping reduce flats caused by thorns and trail debris.

Ideal for fat bikes and e-bikes where strength, reliability, and confidence matter most.

Specifications

• Size: 26 x 4.0
• Weight: 0.55kg (1.21lbs)
• Wall Thickness: 1.5-2mm
• Valve Type: AV (Schrader) – 35mm
• Material: 100% Premium Butyl Rubber
• Tensile Strength: 7 MPa
• Color: Black
• Key Feature: Thorn-resistant construction for improved puncture protection