I know what you’re thinking… What the heck is a Gravel Grinder race?  We had to consult the internet too when this application first came to our attention, but it turns out that Gravel Racing is one of the fastest growing bicycle race sports in the country. Unlike the Tour-de-France, gravel bike racers don’t have a van with a team following them, sponsors, or the lure of big prize money. Terrain can be a combination of