The specialized purgatory grid 2bliss ready 275 tyre the purgatory grid tire is the standard bearer for trail tire performance by applying fe analysis and our gripton compound to the purgatory we39ve optimized this tread to be fast rolling and to bite hard on loose terrain meanwhile the grid casing provides the utmost in cut and flat protection at the sidewalls and of course the 2bliss ready design is the icing on the cake allowing you to run lower tire pressures and all bu