The 17-inch cast alloy rear rim is also from the Ninja, but getting it on the shaft-drive Vulcan hub required some fancy machining. "It's probably the most incredible feature on the whole bike," Berg told us. Cobra's craftsmen machined the flanges off the stock Vulcan hub, then machined the Ninja wheel to fit it. The wheel's spokes were welded to the hub, the welds carefully cleaned up, and the whole assembly was sent to California Polishing, which, in Berg's words, "did a super job." The stock rear brake caliper -- polished, naturally -- was hung under the stock swingarm instead of above it as on the stock Vulcan 1500 Classic. It also uses Braking U.S.A. brake pads.