Michelin Protek Max 40mm Presta Tube

If you want to keep flat tires to a minimum, whether it's due to punctures out on a ride or pesky issues during installation, then the Michelin Protek Max tube should be your tube of choice. This stoutly built tube comes pre-loaded with sealant to keep you rolling along worry-free while its unique square shape resists twisting while mounting for seamless installation. Unique square shape resists twisting during installation Pre-loaded with sealant to increase flat protection Excellent air retention means longer stints between re-inflation Choose either 700x32-42 or 26x1.85-2.30 sizes Butyl rubber construction 40mm Presta valve