BUCKLOS Tubeless Presta Valve CNC Alloy 40–100mm Road MTB
BUCKLOS Tubeless Presta Valve CNC Alloy 40–100mm Road MTB
BUCKLOS CNC Aluminum Tubeless Presta Valve Stems – 40 to 100mm
Upgrade your road or mountain bike with the BUCKLOS Tubeless Presta Valve Stems — precision-engineered from ultra-light CNC aluminum alloy to deliver near-perfect airtightness and effortless inflation every ride. Available in lengths of 40, 44, 55, 60, 65, 80, and 100mm to fit a wide range of tubeless rim depths.
Made in Mainland China.
Why Riders Choose BUCKLOS Tubeless Valves
- 99.99% Airtight CNC One-Piece Design — The precision-machined single-body construction eliminates common leak points, keeping your tyre pressure consistent lap after lap.
- 36% Faster Inflation — A patented large three-hole base design enlarges the air outlet area by 30%, meaning faster pump-up times and less time fussing at the trailhead.
- Featherweight Durability — Aircraft-grade aluminum alloy with an anodic oxidation finish resists rust and corrosion while keeping the valve stem impressively light.
- Vibrant Anodized Colors — Bold, shiny color options let you personalize your build while the BUCKLOS brand icon adds a distinctive finish to your wheelset.
- Tool-Included Easy Installation — The removable valve core and included valve core removal tool cap make sealant refills and routine maintenance a breeze — no specialty tools required.
What's in the Box
- 2 × BUCKLOS Tubeless Presta Valve Stems (your chosen length)
- 2 × Valve Core Removal Tool Caps
- 1 × Exquisite gift-style box packaging
Specifications
| Brand | BUCKLOS |
| Material | CNC Aluminum Alloy (Anodized) |
| Valve Type | Presta (Tubeless) |
| Available Lengths | 40mm / 44mm / 55mm / 60mm / 65mm / 80mm / 100mm |
| Compatibility | Tubeless Road, MTB, Gravel Rims |
| Origin | Mainland China |
Compatible Upgrades for Your Ride
Looking to round out your toolkit? Check out these handy store picks:
- 1PC 10g High Grade Silicon Grease Lubricant – Great for O-rings & Valve Seals
- 1PC Multi-Use Wrenches – Handy for Valve Core Removal & General Maintenance
- 1PC Sheath & Carry Pouch – Handy Storage for Bike Tools & Accessories
Learn more: MedlinePlus on exercise and physical fitness
Frequently Asked Questions
Q: What rim hole diameter do these BUCKLOS tubeless presta valves fit?
A: BUCKLOS tubeless presta valves are designed for standard tubeless rim valve holes (typically 6.4–6.5mm diameter). The CNC-machined body and included sealing grommet ensure a snug, airtight fit in most tubeless-ready road, gravel, and MTB rims.
Q: Can I use these valves with tubeless sealant?
A: Absolutely. The removable valve core design is specifically intended for use with tubeless sealant. Simply use the included valve core removal tool cap to unscrew the core, inject your sealant, then reinstall the core — quick and mess-free.
Q: Which length tubeless valve stem do I need?
A: Choose a stem length that extends at least 3–5mm above your rim's outer edge when installed. For standard rims, 40–44mm is usually sufficient; aero or deep-section road rims often require 60mm, 80mm, or 100mm stems to clear the rim bed and attach a pump head easily.
Q: Are these valves compatible with both Presta and Schrader pumps?
A: These are Presta-type valves. They are compatible with any pump that has a Presta chuck or a dual-head pump. Most quality floor pumps and CO₂ inflators support Presta valves out of the box.
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.