The gt grade carbon 105 gravel bike 2017 allows you to head off the beaten path take the road less traveled or avoid cliches altogether the grade carbon is the bike of choice for the route of your dreams with a carbon frame and gtrsquos patented triple triangle design you have the ultimate in control and fatigue reduction for those long day exploring the roads to nowhere comfortable geometries pair up with a stiff frame and the durability yoursquove come