The original and still the best tubeless valve stem for most rims and a perfect fit for all Stan’s BST rim models. Weighs only 21g per valve for the 55mm models. Durable brass construction. Removable valve core makes adding sealant easy. Fits up to 8mm valve hole. Sold as a pair.

• Weight: 21g
• Length: 55mm
• Sold as a Pair