Creates a ceramic coating for incredible durability and performance
Strong friction reduction for ultimate efficiency transmission
Waterproof property for good performance in wet conditions
95% biodegradable
• The original and still the best tubeless valve stem for most rims and a perfect fit for all Stan’s BST rim models
• Durable brass construction with removable valve core makes adding sealant easy
• Fits up to 8mm valve hole
• Weight: 18g per valve
