Challenge Gravel Grinder Clincher MTB Tyre

. The Challenge Gravel Grinder is an off road touring tyre, which features an aggressive SuperPoly tyre compound to provide exceptional rolling performance and traction whatever the riding conditions. To ensure complete reliability, this tyre features Double PPS puncture protection and a 120 TPI casing. This tyre is ready to be your companion on any XC adventure Features Use XC, Race Type Clincher Puncture Protection Double PPS Casing SuperPoly Tyre Width 36c TPI 120 Inflation Pressure 43 130 psi Weight 499gBuy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.