Stan's Alloy Presta Valve Stems are the original and most popular valve stem. These have a perfect fit with all Stan's rims but work well with many other makes and models. These weigh less than 15g per pair and are made of lightweight aluminum construction. They also have removable valve cores that make adding sealant easy.

Specs:

• Fits up to an 8mm valve hole
• Weight: >15g
• Material: Aluminum
• Sold as a pair