Parts Unlimited 0350-0367 Heavy-Duty Inner Tube - 2.75/3.00-21, 80/100-21, 90/90-21, 90/100-21, 100/80-21 - TR-4 Valve Stem

Manufactured to the highest quality as approved by all the Japanese motorcycle manufacturers. Available in standard and heavy-duty versions. Each tube is individually boxed with a full range of sizes and valve stem types clearly marked on each box end. Wide range of sizes available for rim diameters from 10in. through 21in. Made of natural rubber which offers a very high tear strength. 2.8-3mm thick rubber provides extra protection against punctures and pinching. Best suited for offroad use. TR-4 valve stem.