Stan's NoTubes

Race Day Tubeless Sealant

What Our Gearhead® Experts Are Saying:

"This is my go-to for race wheels and event bikes. It seals bigger holes faster than standard sealant, but you do need to check it more often. If you care about performance first, this is the right choice."

Stan’s Race Day Tubeless Sealant is engineered for riders who demand maximum puncture protection during races and long-distance efforts. Developed alongside professional athletes and mechanics, it builds on the proven Original formula by dramatically increasing the concentration of sealing crystals. The result is faster response times and improved sealing performance when sharp rocks, debris, or sidewall cuts threaten to end a ride early.

The formula includes 200 percent more sealing crystals than the Original sealant, along with added XL-sized particles designed to bridge and seal larger punctures quickly. This aggressive sealing capability makes it especially effective for XC, gravel, cyclocross, and endurance mountain biking where maintaining momentum is critical. Because of its higher solid content, Race Day sealant must be poured directly into the tire and benefits from more frequent inspection to maintain peak performance.

Recommended for race wheels, event setups, and riders who prioritize speed and reliability over extended maintenance intervals, Stan’s Race Day Tubeless Sealant delivers confidence-inspiring puncture protection when every mile and every second matter.