Lightning™ L3-Series Bike Tire Air Chuck - 1/4" F-NPT (Presta + Schrader Valves) | Open Flow (2 Pack) bike shorts One-handed cinch lets you open

One-handed cinch lets you open or close it on the fly

Fits round or oval tubing or seat posts between 1" and 2" in diameter

Gravel rides & outdoor exploration

Includes bottom pad

Lightning™ L3-Series Bike Tire Air Chuck - 1/4" F-NPT (Presta + Schrader Valves) | Open Flow (2 Pack) bike shorts One-handed cinch lets you openJACO is a proud official "Black Diamond" sponsor of the Colorado Mountain Bike Association! Open Flow Style IMPORTANT: this is an OPEN FLOW style air chuck. This means that air will flow freely through the chuck as soon as an air source is connected and turned on. There is no check valve inside this air chuck air will flow through the chuck whether or not it is engaged with the tire valve stem. Open flow style air chucks are designed to be used with: