FlatOut QuickStrike Tubeless Tire Sealant for Small Tires & Bicycles — 32 oz, Kevlar Reinforced, Fast-Acting

FlatOut QuickStrike Tire Sealant is a fast-acting, Kevlar-reinforced tubeless formula designed to prevent and repair punctures in small tires like bikes, scooters, and mobility devices.

When a small tire puncture threatens your ride, you want a fix that acts immediately and stays effective. FlatOut QuickStrike Small Tire/Bicycle Formula moves quickly to the puncture, deposits strong Kevlar fibers, and seals holes up to 1/4 inch without sticky residue or drying out. Its water-washable, latex- and adhesive-free composition makes cleanup simple while delivering continual protection for the life of the tire.

How fast will QuickStrike stop a puncture while I’m out riding?

The QuickStrike formula is engineered to flow to the site of the puncture rapidly, delivering fibers and sealant where needed within seconds of air loss. That means faster sealing of tread-area holes compared with standard small-tire sealants, helping you avoid slow leaks and roadside repairs.

• Seals tread-area punctures up to 1/4 inch almost instantly
• Flows quickly to puncture sites for rapid action
• Works during riding—no need to remove the tire for many repairs

Can I use this on different small tire types and will it last?

QuickStrike is formulated for tires under 3.5" wide and is compatible with both tubed and tubeless setups commonly found on bikes, e-scooters, mopeds, and mobility devices. A single application provides ongoing protection and does not dry out, reducing the need for frequent reapplications.

• Designed for bicycles, scooters, mopeds, one-wheels, and mobility wheels
• Suitable for tubed and tubeless small tire systems
• One-time application protects for the life of the tire

What makes the seal permanent and mess-free?

FlatOut uses reinforced Kevlar fibers in a latex- and adhesive-free carrier so the seal forms a strong patch without leaving sticky residue. The water-washable nature of the formula keeps installation and occasional cleanup straightforward, and the non-corrosive, non-flammable blend is safe for rim and valve components when used as directed.

• Keeps rims and valves corrosion-free with non-corrosive chemistry
• Kevlar fibers provide superior tensile strength in the seal
• Water-washable and latex/adhesive-free for easy cleanup

How do I apply QuickStrike to my small tires?

Application is designed to be quick and simple: add the recommended amount to the tire through the valve or during a standard installation, rotate the wheel so the sealant coats the interior, and then inflate to the proper pressure. The formula’s improved flow characteristics make it especially easy to treat smaller-width tires.

• Inject through valve core or pour during tire mount
• Spin wheel to distribute sealant evenly across the interior
• Use correct volume for tire width (under 3.5") for best results

Who this product is for: FlatOut QuickStrike is tailored for cyclists, scooter riders, and mobility device users who need fast, reliable puncture protection without frequent maintenance. It suits commuters, urban riders, delivery personnel, and anyone running small-diameter or narrow-width tires who wants a one-time application that keeps working for the life of the tire. Not recommended for standard passenger vehicle tires.