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Evans Cycles UK£24.00Visit shop Lezyne Cnc Tlr Pro Puncture Repair Kit Medium Gold
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The Lezyne CNC TLR Valve PRO is an essential upgrade for cyclists riding tubeless on road, gravel, or mountain bikes who demand reliability and high-airflow performance. These precision-engineered stems ensure a leak-free interface with your rims, featuring a four-slot design that prevents clogging even when using tire inserts. While they offer superior construction and tool integration, users should ensure their rim profiles are compatible with the 70.5mm stem length before purchase to avoid fitment issues.
| Model Part Number | 4710582554759 |
|---|---|
| Brand | Lezyne |
They are compatible with all Presta-style floor and hand pumps.
The valves are 70.5mm long, so ensure your rim depth leaves enough stem exposed for your pump head to attach securely.
Each valve stem weighs approximately 14 grams.
The T25 tip is designed for light maintenance and tightening; avoid using extreme force to prevent damaging the valve cap.
No tools are required for installation; the valves are designed to be tightened by hand using the included grooved locknut.
Yes, the four-slot high-flow design is compatible with all standard liquid tubeless sealants.
Ensure the locknut is tightened firmly by hand and check that the cone seal is seated properly against the rim bed with no debris present.
Check the valve core to ensure it is not clogged with dried sealant; use the integrated tool cap to remove and clean or replace the core.
Ensure the O-ring is present under the nut and tighten slightly more, or use a small amount of threadlocker if necessary.
To install, slide the valve stem through the rim hole and ensure the cone seal is seated flush against the inner rim surface. Hand-tighten the grooved locknut until snug—do not overtighten with pliers, as this can damage the rubber O-ring or the rim surface.
Compatibility: These valves are compatible with most tubeless-ready rims on the market. Always verify that your rim depth is sufficient for the 70.5mm stem length.
Care: Periodically remove the valve core to clean out any dried sealant buildup. Use a soft cloth and mild soap to clean the exterior threads to keep the locknut turning smoothly.
