A high-tech Showa Separate Function Fork (SFF) with a Triple Air Chamber (TAC) separates the damping forces into the left fork tube, while the pneumatic spring is housed on the right tube for less friction, better movement and a lighter fork.
The innovative SFF-Air TAC fork is derived directly from Villopoto's race bike and is revolutionizing the motocross market with better small- and large bump absorption, increased adjustability and superior reliability compared to conventional dual-spring forks. The reduced weight and inertia of the pneumatic spring keeps the wheel in contact with the terrain thanks to very little resistance during rebound compared to conventional spring forks. These high-tech forks are also suppler over small bumps, while offering more resistance to bottoming.
As its name suggests, the Triple Air Chamber features three separate chambers with individual air volumes that allow the ultimate in adjustability, thanks to individual tuning. An inner 145psi high-pressure pneumatic chamber works in harmony with a 7.25psi low-pressure outer chamber and a 130.5psi high-pressure lower chamber. These replace the heavy, friction-inducing spring for the ultimate in function and tuning. There is also less oil contamination from the metal-on-metal wear suffered by conventional internal fork springs. A titanium coating on the inner tubes improves fork action with diminished friction, and the silver external finish is factory fresh.
Suspension tuning with the Showa SFF-Air TAC is easier than ever thanks to the Kawasaki Genuine Accessories 0-300psi Digital Air Pump that is included with every KX450F. The Digital Air Pump makes life easier and helps riders quickly adjust the high-pressure SFF-Air TAC forks. The digital display offers increased precision when setting air pressures, and the casing stores DFI Couplers for the fuel injection system for better organization on race day."