BUCKLOS Tubeless Presta Valve Stems CNC Aluminum MTB Road Bike

Upgrade your tubeless setup with the BUCKLOS CNC Aluminum Tubeless Presta Valve Stems — engineered for MTB and road bike riders who demand precision, durability, and a leak-free ride. Available in multiple lengths: 40mm, 44mm, 55mm, 60mm, 65mm, 80mm, and 100mm, these valves are designed to fit a wide range of rim depths and tubeless-ready wheelsets.

Made in Mainland China.

Key Features

• 99.99% Airtight CNC One-Piece Design: The precision CNC-machined single-body construction virtually eliminates air leakage, keeping your tyre pressure consistent ride after ride.
• Large Three-Hole Base for Fast Inflation: The enlarged three-hole air outlet at the base increases the air outlet area by 30% and boosts inflation efficiency by 36%, so you spend less time pumping and more time riding.
• Ultra-Light Aluminium Alloy Construction: Made from lightweight aluminium alloy with an anodic oxidation process that resists rust and corrosion, extending the lifespan of every valve stem.
• Vibrant Anodized Colors: Multiple colour options with a bright, shiny finish — plus the BUCKLOS brand icon on each stem for a clean, premium look that complements your build.
• Removable Valve Core for Easy Maintenance: The valve core can be removed quickly using the included valve core removal tool, making it straightforward to add sealant or perform trail-side maintenance.
• Compatible with Tubeless Rims: Fits standard tubeless-ready MTB and road bike rims. Simply choose the stem length that matches your rim depth.

What's in the Box

• 2 × BUCKLOS Tubeless Presta Valve Stems (in your chosen length)
• 2 × Valve Core Removal Tool Caps
• 1 × Presentation Box

Specifications

Related Products You May Like

• 1PC High Grade Silicon Grease Lubricant for O-Rings & Tubes — great for keeping valve cores smooth and sealing threads.
• 1PC 400cm Sealing Tape – Oil-Free Leak Proof Tape — a handy tool for any sealing or maintenance job.
• 3PCS Silicone Sealant Scraper Set – Multi-Functional Tools — versatile finishing tools for your workshop.

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Frequently Asked Questions

Q: What rim depths are these BUCKLOS tubeless presta valves compatible with?

A: BUCKLOS tubeless presta valve stems are available in seven lengths — 40mm, 44mm, 55mm, 60mm, 65mm, 80mm, and 100mm — making them compatible with shallow to deep-section tubeless-ready rims for both MTB and road bikes. Choose a length that extends at least 3–5mm above the rim's valve hole for easy pump head attachment.

Q: How do I install these tubeless presta valve stems?

A: Installation is straightforward. Insert the valve stem through the rim's valve hole, hand-tighten the lock nut against the rim bed, and seat your tubeless tyre. Use the included valve core removal tool to unscrew the valve core, add your sealant, and then re-install the core before inflating. The CNC one-piece construction ensures a secure, airtight fit.

Q: Are these valve stems compatible with standard Presta pump heads?

A: Yes. BUCKLOS tubeless presta valve stems feature a standard Presta thread profile that is compatible with all common Presta pump heads, compressors, and CO₂ inflators — making them a drop-in upgrade for any tubeless-ready wheelset.

Q: How many valve stems come in the package?

A: Each package includes 2 BUCKLOS tubeless presta valve stems plus 2 valve core removal tool caps, presented in a neat box — ideal for a complete front and rear wheel setup.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.