The Grindstone Compound continues to ramp up and welcome new riders into the mix through the month of December and into the new year. While the Ginter brothers get a little break from the grind of training for upcoming amateur national season, Zack Williams and Jesse Wentland join the mix while prepping for East Coast Supercross. For Keaton Ward, his winter spent at the Grindstone Compound will serve as time well spent while he closes out his final year in the amateur pro class in search of championships and a smooth transition into the pro ranks.