Suspension & Brakes
For 2018, the KX450F motorcycle once again features industry-leading technology from the Showa SFF-AIR TAC (Separate Function Fork, Triple Air Chamber), which separates the damping and shock absorption duties into the individual fork legs. The left fork contains the damping assembly and the right fork contains the air spring. Instead of the steel coil springs found in conventional forks, the SFF-AIR TAC's right fork tube has three chambers filled with pressurized air that act as a "spring." With the elimination of steel coil springs, friction is reduced, and provides an extremely smooth action throughout the fork's stroke. This has the added benefit of weight reduction and allows a larger damper piston to be used, further smoothing the action. It is lightweight and rigid, contributing to superior riding performance and front-end feel. The low friction design, including a DLC coating to the outside of the lower fork tubes also contributes to the extremely smooth fork action. Incredibly precise settings can be adjusted by simply changing the air pressure and using the 22-position compression and 20-position rebound damping adjustments. Changing air pressure covers a range of settings offered by optional springs in a standard fork, including quick changes of ride height, without needing to disassemble the fork tubes.