• Anti-clog design resists sealant blockage
• Tool-free core removal
• Works with existing presta pumps and gauges
• Reliable seal on modern rim shapes
• Compatible with rim inserts
• Easily serviceable to keep clean
• Stans Mk4 and S2 rims take the size regular stems

Exo-Core valve Fit Guide for rim depths:

• size regular <20mm
• size Medium 17-26mm
• size Tall 27-36mm
• size Extra Tall 37-46mm