Tread Victoriously - Introducing the High Road SLThe fastest and lightest road tyre developed by Maxxis. It features: our all-new HYPR-S Compound; Building on the success of the HYPR compound which debuted on the original High Road, the new HYPR-S compound retains exceptional grip while decreasing rolling resistance by 12%, our K2 breaker beneath the tread for puncture protection; and a lightest and most supple supple 170 TPI casingSpecificationBe fast, not last,TPI:170,Compound: HYPR-S Compound Technology,Puncture Protection Level: 1 2 34,Breaker: K2 Puncture Protection,Bead Type: Folding,Weight: 170g.