Airolube Racing Flat Guard 100ml Tubeless Sealant

Airolube Racing Flat Guard 100ml: Lightweight Tubeless Sealant for Road Racing

Racing Flat Guard is the tubeless sealant designed specifically for racing bikes, where every gram matters and a single puncture during a ride can cost you the race. Unlike most sealants that rely on microplastics to close a leak, Racing Flat Guard uses lightweight cork particles — light enough not to add rolling resistance, yet large enough to seal a puncture perfectly in one go. Best for competitive road cyclists who want maximum puncture protection without sacrificing speed or weight.

Key Features

• Cork-based sealing particles instead of microplastics, for a lighter and more eco-conscious formula
• Seals punctures instantly without increasing rolling resistance
• Large enough particles to fill leaks optimally in a single application
• Easy to apply through the valve with an injector or by pouring before mounting the tire
• Ideal companion product: Offroad Flat Guard for mountain bike and gravel tires with coarser treads and higher puncture risk

Specifications

• Content: 100ml
• Brand: Kruitbosch (Airolube)
• Product code: AL30550
• EAN: 8721225030550
• Sealing agent: Lightweight cork particles
• Recommended use: Racing bikes with tubeless tires

How do I apply Racing Flat Guard to my tubeless tire?

Shake the bottle well before use. Remove the valve core and inject the sealant through the valve using an injector, or pour it into the tire before mounting. Reinstall the valve core, inflate the tire, and spin the wheel a few times so the sealant spreads evenly across the tread.

Is Racing Flat Guard suitable for mountain bike or gravel tires?

Racing Flat Guard is optimized for road racing tires where weight is critical. For mountain bike and gravel tires, which have coarser treads and a higher puncture risk, Kruitbosch recommends its counterpart, Offroad Flat Guard, instead.

Why does Racing Flat Guard use cork particles instead of microplastics?

Most tubeless sealants use microplastics to plug leaks, but Racing Flat Guard uses lightweight cork particles instead. These are light enough to avoid increasing rolling resistance, yet large enough to seal a puncture completely in a single pass — ideal for performance-focused racing setups.