90/90-21 (3.00 x 21) Heavy Duty 21" Inner Tube 3mm Thick

This 3.00 x 21 (90/90-21) inner tube is made of 100% natural rubber and is 3mm thick, designed for off-road and motocross tires, offering durability and resistance to pinches and punctures.

• The description claims the inner tube provides advanced pinch and puncture resistance.
• The description claims the inner tube has a 12MPA tensile strength.
• The description claims the inner tube is designed to withstand tough riding conditions.
• The description offers a free 6-month replacement with the buyer paying for shipping and handling.