BPF technology 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.

Double bore intake funnels (“velocity stacks”) feature inlets at two different heights, allowing performance increases in both the mid- and high-rpm ranges.
Optimised cam nitriding (NV) and tappets with increased durability enabled the use of high-load cam profiles which improve overall performance.