Burly and fast. Constructed from high-quality carbon, the Grizl CF SL frame weighs less than a kilogram overall. It's also hard as nails, super-stiff, and built to withstand years of rough-and-ready riding on the harshest gravel you can find. For extra no-wobble storage at your fingertips, the frame even has top tube rivets for screwing on a hardshell top tube box.