Mavic yksion pro powerlink tubular tyrethe yksion pro powerlink is designed to speed the bike up optimized for rear wheel use its compound supple nylon casing reinforcement and tread pattern are specifically designed to increase rolling efficiency making it one of the fastest tyres around features super low rolling resistance speed optimized tread design high casing density 210 tpi weight 230g 23mm 270g 270gbuymavic wheels tyresfrom chain reaction cycles the worlds largest onli