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The Next Level in Sealing Power from the People who Invented Tubeless Conversions If you've walked the mechanics' pits at any National or International level event, chances are you've seen them: trademark Stan's black quart bottles with no labels. Look closer and you might have seen strange symbols scrawled all over the bottles in a silver marker, letters and numbers, formula notes by the man himself, Stan Koziatek. For nearly fifteen years Stan has been quietly formulating a special racing version of our legendary sealant for many of cycling's most successful teams. Working with athletes who push themselves and their tubeless systems to the absolute limit, he developed a proprietary sealant formula with close to twice the amount of the standard sealing crystals plus special "XL" crystals capable of sealing even larger punctures. Stan's Race Sealant's combination of large and smaller sealing crystals interlock to form a lattice work that not only seals but strengthens and reinforces the area of the puncture, allowing for an entirely new level of sealing performance. The quantity and size of crystals in this special formula means that Stan's Race Sealant can only be installed directly into the tire. As a result of its immense sealing capabilities, the Race Sealant will clog injectors and smaller bottles almost immediately. Stan's has made Race Sealant available to riders everywhere, and it is only available by the quart. - First choice of riders around the world for tubeless conversion and flat prevention - Twice the amount of Stan's standard sealing crystals - "XL" crystals capable of sealing even larger punctures - Stays liquid 2-7 months for long-lasting protection - Premium low-viscosity formula resists freezing to work in environments as cold as -30° F (-34° C) - Natural materials, safe for the environment

Looking for a super lightweight but badass tubeless sealant? Boom, you've just found it my friend! No Puncture Hassle performs under the most brutal race conditions. The cutting-edge microfiber molecules fill the bigger holes and tears, whilst the advanced latex forms a strong seal instantly. The formula also contains a unique UV detection system that highlights any punctures you haven’t seen during your ride. Developed with the world's top downhillers and pro peloton teams, to give you the finest tire sealant available. It's non-corrosive and easily washes off with water. Compatible with tubeless ready and full UST wheels/tires, No Puncture Hassle works from 15psi-120psi and temperatures from -20°C to +50°C. Our pouch is designed to fit your Presta valve perfectly and is ideal to add to your toolkit or ride pack for emergency top ups on the go! - For Downhill, Enduro and Road tires - Seals tears and holes up to 6mm - Contains UV puncture detection - Won't dry out or ball - Works from 15psi-120psi and temperatures from -20°C to +50°C - Biodegradable

- The same tubeless valves, now with a Tire Insert air flow system - 6 slots machined into the base of the valve stem allow air to flow freely around tubeless tire inserts - Upgraded to aircraft grade 7075 aluminum valve stem and cap - 4mm machined Allen Key slot for easy installation/removal - Valve core removal tool integrated into valve cap - Includes multiple rubber bases to optimize fit with multiple rim types