Stan's Original Tubeless Sealant

A trusted classic tubeless sealant originally developed by Stan in 2001, Stan’s Original Tubeless Sealant remains one of the most widely used tubeless solutions for bikes of all types — mountain, gravel, and road. It was the first commercially successful tubeless tire sealant and continues to be a go‑to choice for riders around the world thanks to its simplicity and effectiveness.

Features & Benefits

• All‑around compatibility: Works with virtually all tubeless road, gravel, and mountain bike tires.
• Rapid puncture sealing: Designed to seal holes up to ~6.5 mm (¼″) in diameter under typical riding conditions.
• Long‑lasting formula: Remains liquid inside the tire for 2–7 months, so it protects over many rides before needing a top‑off — though dry/arid climates may require more frequent checks.
• Temperature resilient: Contains anti‑freeze agents so it stays liquid and effective in cold conditions down to around –20 °F (–30 °C).
• Low viscosity: A thin, free‑flowing formula that coats the inside of the tire quickly after installation, helping seal punctures sooner.