Hell Kerbex Ball Defense(not sure)145 Defense Sharp(sure)
Hell is the widest Metal Wheel. The bey is in the Maximum Series because of this.
BD145 has two modes.
Normal, when the "shield" is near the ground, and Boost, when it's near the Metal Wheel.
Defense Sharp appears to have a hole between Defense and Sharp, but it is not confirmed.
Hell is painted gold.
EDIT BD145 = Boost Disk