The Schwalbe Rapid Rob K-Guard Lite Skin Wired Tyre is a top choice for rookies. An excellent XC tire which is perfectly suited for use on the rear wheel. Schwalbe's reliable Rapid Rob is the top choice for mountain biking rookies and seasoned vets alike. The Racing Ralph tread on this MTB tyre comes with a 50 EPI carcass and Schwalbe's LiteSkin sidewall for reinforced protection on the MTB trails. Schwalbe Rapid Rob K-Guard Lite Skin Wired Tyre Features SBC compound K-Guard protection LiteSkin sidewalls Weight: 26x2.10 650g / 26x2.25 720g / 27.5x2.10 680g / 27.5x2.25 750g / 29x2.10 725g / 29x2.25 790g