Extra heavy duty tube for serious off-road riding and racing.

• Made from high quality natural rubber - number 1 grade
• Superior 4mm single wall thickness provides strength with less unsprung weight
• Designed to fit motorcycle tires at maximum volume so they're under the least amount of stress (not stretched when inflated)

3 Types / Thickness Available:

• 1.4 mm Standard Series
• 3 mm Heavy Duty Racing
• 4 mm Uber-Duty or Ultra Heavy Duty