Challenge - GRAVEL GRINDER-RACE-V-CL-Black-120tpi-700x38 Half link allows more precise

Half link allows more precise wheel adjustment

Tough DMR vinyl print top

The embodiment of EVO and the culmination of TRP's extensive engineering and development history integrated with the world's top riders and teams

Starting with CORAZZAARMOR SILVER for enhanced sidewall protection

The Expert model uses Reynolds/Ringlé Super Bubba X Road DB hubs

Challenge - GRAVEL GRINDER-RACE-V-CL-Black-120tpi-700x38 Half link allows more preciseConsumer Product Safety Bulletin March 13, 2019 Make your mark on the gravel scene with the Gravel Grinder. This tyre combines a fast rolling diamond centre with aggressive shoulder knobs that only hook up when the terrain gets soft, muddy, or a bit sketchy.