evo.com | Stan's NoTubes Sealant > Stan's NoTubes 250ml Tire Sealant allows you to go tubeless with maximum confidence. Compatible with all road, gravel, and mountain bike tires, this quality sealant gets the job for any tubeless setup. Can Be Injected Through Valve Stems with Removable Valve Cores Seals Punctures Up to 1/4" / 6.5mm Stays Liquid 2-7 Months for Long-Lasting Protection Anti-freezing Agents For Use in Temperatures Down to -20degF / -29degC | Stan's NoTubes 250Medium/Large Tire Sealant 2025 - 250Medium/Large Size 250Ml