So, you've got yourself a KFX and want to crank more power from the green beast? Well, this is an excellent place to begin your performance Kawasaki KFX parts quest. Now, let's begin from the bottom with a rundown of the lineup. The KFX90 features an 89cc engine, which is an air-cooled, overhead-cam four-stroke. The KFX90 boasts a continuously variable automatic transmission (CVT) with an push-button electric start with a kick-start backup. This is an excellent entry level ATV, which the kids can enjoy. Now, let's move onward to the KFX450R, which is a favorite of the Monster Energy Monster Army with its 449cc liquid-cooled, four-stroke single that boast a dual overhead cam (DOHC). The KFX engine features four valves per cylinder that really cranks up the performance to impressive highs for the power hungry quad racers. The induction system features a 32-bit digital fuel injection system with a whopping 42mm throttle body. The highly-rigid aluminum frame contributes to the excellent handling and traction the KFX450R known for. The MSRP of the KFX450R reigns in at just over $7,000. Now, let's work our way into the KFX700 with a manufacturers suggested retail price at about $6,500. It's a monster at 697cc. The KFX700 is a liquid-cooled four-stroke that reside within the frame as a 90-degree V-twin. The KFX V-twin is performance-tuned with a continuously variable automatic transmission.