This is the Black Jack from Durango Bike Company. It's a 29er frame that is currently shod with a 650B + wheel set up. The rear end is set to 120mm of travel via a modified Horst Linkage. The entire frame is made in the USA, from the tubes, billeting and even the rear axle on the 148mm hub. You'll find over sized Enduro brand bearings at all the pivots too. Add in the 16.7" seat stays, 67.5 degree head angle and this bike is made to last and to really get the most out of your trail riding experience.