The Blackbird Send 29in Boost Wheelset is a lightweight, aluminum wheelset designed to withstand the rigors of enduro riding. Two years of Enduro World Series results reinforce why these are the wheels we want to be riding on days when big drops and massive rocks are on the menu. A pair of ribs sits directly below the bead seat on the rear wheel to protect against the type of rim dents that typically would end our ride. These wheels come tubeless ready with a 35mm internal width, so we can run wide tires to maximize grip on any terrain.