One of our favorites for this fall and winter because of its added traction over the slippery leaves. Most popular on the front wheel . The Ground Control 2Bliss Ready is an exceptionally versatile trail tire. CAD engineered knob shapes strengthen knob structure for optimum braking and traction, but keeps knob surfaces adaptable for best ground control. GRIPTON compound helps make this the perfect choice for epic trail rides in any condition. Available in 29, 27.5, or 26 wheel size.