Upgrade your ride to a tubeless setup with Stan’s NoTubes 21mm Tape/55mm Valve Road/Gravel Tubeless Kit. This kit provides everything needed to convert your road or gravel bike’s tubeless-ready rims and tires, offering a smoother, faster ride with fewer flats. Stan’s legendary sealant is a leader in flat prevention, sealing punctures up to 6.5mm on the go to keep you rolling on any terrain. Lower tire pressure options improve traction and control, while the reduced rotational weight makes climbing and acceleration easier, so you can ride faster and further without the worry of pinch flats.

The kit includes 118ml of Stan’s sealant, 21mm Yellow Tape, and 55mm brass valves with removable cores—all optimized for road and gravel use. Stan’s durable Yellow Tape forms a vapor barrier, keeping your rim cavity dry and corrosion-free. Designed for simplicity, this system helps you make the transition to tubeless with ease and confidence.

Features

• Complete Tubeless Conversion: Contains everything you need to go tubeless, including sealant, tape, and valves.
• Stan’s Tire Sealant: Seals punctures up to 6.5mm (1/4”) instantly and provides long-lasting protection.
• 55mm Brass Valves: Compatible with most road and gravel rims up to 45mm deep, with removable valve cores for easy sealant refreshing.
• Airtight Yellow Tape: Keeps moisture out, preventing corrosion and keeping your rims clean.
• Enhanced Traction & Control: Run lower tire pressures for improved grip and control on any surface.
• Reduced Rolling Resistance: No inner tube means lower weight and less resistance, for faster, longer rides.

Specifications

Benefits of Going Tubeless

• Fewer Flats: Tubeless setups with Stan’s sealant repair punctures almost instantly, providing worry-free rides even over challenging terrain.
• Improved Ride Quality: Lower tire pressures allow tires to contour to the terrain, enhancing control and grip.
• Weight Savings: Tubeless reduces rotational weight, letting you accelerate faster and reducing fatigue on long rides.
• Easier Maintenance: Removable valve cores make it simple to refresh sealant and keep your setup performing optimally.

What’s in the Box

• 1 x 118ml Bottle of Stan’s Tire Sealant
• 1 x Roll of 21mm Yellow Tape (sufficient for one wheelset)
• 2 x 55mm Brass Valves with removable cores

Why Choose Stan’s NoTubes Kit?

Since 2000, Stan’s NoTubes has been the trusted solution for tubeless conversions, offering proven puncture protection and performance-enhancing sealant. Whether navigating rough gravel paths or speeding down paved roads, Stan’s ensures a reliable, flat-free ride so you can focus on performance, speed, and control.