Stan's No Tubes Original Tubeless Sealant (500ml) is a premium, low-viscosity liquid tire sealant designed to provide rapid puncture repair and long-lasting flat protection for all tubeless bicycle tires.

Key Performance Specifications

• Puncture Sealing: Instantly seals punctures and holes up to 6.5mm (1/4") in size using built-in sealing crystals.
• Longevity: Stays liquid inside your tires for 2 to 7 months, minimizing the need for constant maintenance and top-offs.
• Temperature Range: Formulated with anti-freezing agents to remain fully functional in harsh conditions down to -28°C (-20°F).
• Eco-Friendly Formula: Composed of natural latex that is non-toxic, non-hazardous, and completely non-corrosive to wheels or tires.
• Volume Capacity: A 500ml (16oz) bottle contains enough fluid to convert or maintain up to 8 standard bicycle tires.

Why It Is Highly Recommended

• Expert Praise: Testers at Mountain Bike Rider (MBR) highlight its thin, milky consistency that avoids the sticky, clumpy mess left by thicker competing sealants.
• Real-World Durability: Real-world user reviews consistently praise its ability to stay fluid over extreme intervals, with some riders reporting active sealing performance for up to a year without refilling.
• Convenience: Unlike specialized race-day formulas, the Original formula can be injected directly through standard valve stems using a syringe injector tool for completely mess-free top-offs.