Maxxis High Road Gen 2 700 x 25C 170 TPI Folding HYPR K2 TyreThe road gets higher with the 2nd edition of the High Road, with a ligher, more supple casing, a revised tread pattern and our newest puncture protection Upgraded to 170 TPI casing vs. 120 TP 12 15% weight reduction on the previous clincher and a 2% reduction in rolling resistance New ZK anti puncture layer vs. K2, a liquid crystal polymer fiber gives a 7% increase in puncture resistance Revised tread pattern Finely textured casing improves dry