Parts Unlimited Standard Inner Tube - 2.75/3.00-21, 90/90-21, 80/100-21, 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 8in. through 23in.
Real butyl tubes made from 100% butyl polymer, unlike other butyl tubes, which are blended with butyl polymer and natural rubber.
100% butyl tube minimizes natural air leakage while maintaining air pressure for a longer period of time.