Avon Heavy Duty Natural Rubber Inner Tire Tube 3.50-18/4.00-18 TR4 (712215)

Natural rubber has good wear resistance, high elasticity, high resilience, and tensile strength. It has a good dynamic performance and low level of damping. However, it ages with time and has poor chemical, oil, and ozone resistance. It has poor resistance to elevated temperatures. Customers who want a heavy duty tube tend to go with the natural rubber ones