Presta Valve Core Replacement – Universal French Valve Insert

Description

A valve core is the small metal piece that threads inside your tyre valve stem. Consisting of a movable, spring-loaded pin and an attached seal, the valve core is screwed inside your tire’s valve stem to prevent air loss.

The valve core works to open when you need to top up with air and remain shut once you remove the inflator. A faulty valve core will leak air and result in a flat tyre or become stuck and not allow you to fill up your tyres after a leak or puncture.

• Replacement valve core for Presta/French valves

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