Review on Schrader 20055 TPMS Nickel Plated Valve Core - Pack of 100: Premium Quality for Optimal Tire Pressure Monitoring Systems (TPMS) by Chris Smotherman

These nickel plated Schrader 20055 TPMS valve cores are the perfect replacement valve cores for the woefully inferior cores that come with slime filled inner hoses (another Spot on these Revain pages.) While Slime's inner tubes have the advantage of excellent puncture resistance, Slime failed miserably when selecting poor quality cores for his inner tubes, as they constantly fail or clog - even when the bike is stored or filled with air with a valve between the 10 and 2 o'clock positions. So if the slime cores fail (and they will), keep them on hand as backups for spares. Stay Safe .GhillieMan