Why Do Racers Choose Stan's Race Day Sealant?

Stan's Race Day Tubeless Sealant is engineered for riders who need maximum puncture protection without slowing down. Its low-viscosity formula contains twice the sealing crystals of Stan's Original sealant, combining both XL and standard-sized crystals in a single formula to close larger punctures faster and more reliably than conventional sealants. When a flat could cost you a race, Race Day is the sealant you want inside your tires.

Formulated to perform in extreme conditions, Race Day remains stable and effective down to -30F, making it a dependable choice year-round regardless of climate. The 1000ml bottle provides enough sealant for multiple tires, and the fast-acting chemistry means most punctures seal before you even notice a pressure drop. Built for road, gravel, and mountain bike tubeless setups where performance and reliability are non-negotiable.