Lezyne CNC Tubeless Ready Presta Valves

Yes, they are specifically designed for that purpose. The 4-slot air-flow system at the base ensures that sealant and air can move freely even when a tire insert is pressing against the valve opening.

These valves have a stem length of 44 mm, which is a standard length suitable for most mountain bike and gravel rims.

No, you don't. The integrated valve cap is cleverly designed to function as both a valve core removal tool and a T25 driver, making it easy to tighten or remove the valve during installation or maintenance.

Yes, the valves feature a slender base specifically engineered to fit securely and seal properly in narrow rim channels where bulkier valves might struggle to sit flush.

Absolutely. They are constructed from CNC-machined aluminum, which offers a high strength-to-weight ratio, ensuring they remain durable and leak-free even under the stresses of aggressive trail riding.