Definitions for "Schrader"
Keywords:  tire, bmx, plunger, valve, bikes
an inner tube valve identical to those found on car tires. A tiny plunger in the center of its opening must be depressed for air to enter or exit.
A type of valve used on children's, BMX, and entry-level to mid-price adult bikes, these are the same type of valves as used on an automobile tire.