When it's time to put 160-something ponies to the pavement, we'll take all the digital assistance we can get, which is the simplest way to describe Bazzaz's top-shelf Z-Fi box. Plug it into the stock Suzuki wiring harness with nifty original-equipment-style connectors and you get a fuel map pre-programmed to the Yoshimura system, clutchless shifting beyond 3000 rpm and actual, adjustable traction control. Thus equipped, a handful of throttle generates the same net effect as 5000 volts to the rump of a rodeo bull, but with a lot less drama. The magnificently dialed-in crew at Hard Racing back in Mooresville, North Carolina, set us up with some Gilles Tooling rearsets ($550) when nobody else could. When these guys say they have something, they have it. The CNC-machined, hard-anodized, 7075 aluminum artistry from Luxembourg is almost too pretty to put on a motorcycle. But the extra cornering clearance and adjustment latitude let you put a comfortably sporty edge on the 'King's ergos. No more nasty grinding noises in the corners.