Cylindrical guides added to the top of the air box ensure more accurately sprayed fuel mist from the secondary injectors. With fuel more precisely directed into the intake funnels, combustion efficiency and power delivery is improved.

The BPF is one of the great contributing factors to the Ninja ZX-6R’s great composure under braking. Compared to a cartridge-type fork of the same size, the BPF features a main piston almost twice the size (φ37 mm vs φ20 mm on ZX600P); oil inside the BPF acts on a surface area almost 4 times the size. Compression and rebound damping adjustment are located at the top of each fork tube. Preload adjustment is at the bottom.