Schwalbe racing ralph performance mtb tyre dcprofile compound carcass in the third generation of the racing ralph everything is designed for speed in the 29 variant the special arrangement of the blocks and their elongation have been adapted to the longer footprint performance advantages of the large wheels are optimally improved featuressize 26 x 210etrto 54 559type foldingcompound dualexecution performanceskin liteweight 510gpressure 200 400 bar 30 55 psimaximum loa