Mounted some Anacondas on the B2, the rear was easy to convert to hex, the fronts have bearings inside the wheels instead of in the front steering blocks, the front axle is fixed inside the front steering block and the bearings ride on the axle and are then held on by a nut, luckily I had accidentally ordered premounted Anacondas for a Jato, the Jato also uses bearings in the front wheels. The front is way too wide but it handles fairly well.