• 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
The Chiru MIPS lets you push your limits mountain biking without sacrifice. A low friction MIPS layer and deep coverage at the sides and rear of the helmet helps protect your head against unexpected knocks.