FlatOut QuickStrike Tire Sealant for Small Tires/Bicycles - 1 Gallon + Tool, Fast-Flow Kevlar Formula

FlatOut QuickStrike Tire Sealant (Small Tire/Bicycle Formula) is a rapid-flow, Kevlar-reinforced sealant designed to stop punctures and slow leaks in tires under 3.5" wide.

This newly reformulated QuickStrike mix is built to move into punctures fast and form a durable barrier without sticky residues. It works in both tubed and tubeless setups for bicycles, e-scooters, mopeds, mobility devices and other small-wheel applications. Packaged as a one-gallon supply plus an installation tool, the product is intended to protect tires for the life of the tire with a single application under normal use.

How quickly does QuickStrike seal a puncture?

The QuickStrike formula flows rapidly toward leaks so it can begin sealing almost immediately after a puncture occurs. Its fast response reduces air loss time and increases the chance of stopping holes before you fully deflate.

• New fast-flow chemistry engineered for low-pressure, small-diameter tires
• Keeps moving to the puncture instead of gelling too slowly
• Seals typical tread-area punctures up to 1/4" in many cases
• Helps address slow leaks that develop over time

Will this work in my tubed bike tire or scooter wheel?

Yes — QuickStrike is formulated for both tubed and tubeless tire systems when the tire width is under about 3.5 inches. It’s water-washable and free of latex adhesives, so it won’t leave a sticky mess inside the tire.

• Intended for bicycles, scooters, mopeds, mobility scooters, and one-wheels
• Not recommended for passenger car tires or heavy commercial applications
• Compatible with common inner tubes and modern tubeless setups
• Easy cleanup with water due to latex- and adhesive-free formulation

What makes Kevlar in the formula useful?

Kevlar fibers provide mechanical strength at the puncture site, helping form a tougher, more resilient plug than liquid sealant alone. The fibers interlock with the sealant matrix to resist abrasion and maintain integrity as the tire rotates.

• Super-strong fibers reinforce the sealed area for longer-lasting repairs
• Supports sealing of larger holes up to about a quarter-inch
• Helps maintain seal under repeated flexing and rolling
• Non-corrosive and non-flammable for safe storage and use

How easy is it to install and maintain?

QuickStrike arrives with a tool to simplify pouring and distributing the sealant into small tires. The new formula is easier to add and requires minimal maintenance: a single application can last for the tire’s service life under routine riding conditions.

• Comes with a tool for controlled, low-spill application
• One-time application often sufficient for the life of the tire
• Water-washable for quick cleanup and reduced residue
• Non-sticky formula reduces interior buildup and clumping

Who is this for? FlatOut QuickStrike Small Tire/Bicycle Formula is intended for cyclists, commuters, scooter riders, and owners of mobility devices who want fast puncture protection without messy adhesives. If your wheels are under 3.5" wide and you need a durable, Kevlar-reinforced seal that works in tubed or tubeless setups, this product is designed to provide long-term leak prevention and quicker field repairs. Avoid using this formula on passenger vehicle tires or where a manufacturer advises against aftermarket sealants.