KEN VALKYRIE PRO 700x23 BK/BK/REF-HP R3C/KA/120 FOLD 125psiPro level high quality road tire that offers excellent rolling resistance, superior wet or dry grip and a very high level of puncture resistance Smooth center section with mild siping on the shoulders for improved cornering grip and bite R3C is Kendas fastest rubber compound and used exclusively for high end racing tires significantly lower rolling resistance and increased wet weather traction KA K Armor is a proprietary casing material technology