Sunlite Alloy Presta Adapters Use your Presta tubes with any Schrader pump head Convert your Presta valves to Schrader compatibility with these precision-machined AL6061-T6 alloy adapters. Featuring a non-slip knurled grip and an integrated internal O-ring, they provide a secure, airtight seal that lets you use standard gas station or shop pumps anywhere you ride. Keep a pair in your saddlebag and your toolbox to ensure you're never stranded without a way to inflate your tires. AL6061-T6 alloy construction provides durability without adding meaningful weight to your kit Knurled head gives fingers enough grip to thread on and off even when hands are cold or wet Internal o-ring seals the connection between adapter and pump head so air goes into the tube, not out the side Internally threaded design seats flush on the Presta valve stem for a stable, rattle-free fit | Sunlite | Alloy Presta Adapters 50 Pack