2007 Kawasaki Ninja ZX™-10R

Features: * Incredible Power-to-weight ratio * Race-oriented Performance * Track-tuned handling * Aggressive new aerodynamic styling * Very compact, narrow, and light-weight design * The upper crankcase and cylinder are a one-piece casting which is more than two pounds lighter than using a separate cylinder and offers increased rigidity. A slanted casting process rotates the piece during casting to eliminate imperfections and excess casting material. *Channels in the case mounting surface route oil to various parts of the engine, eliminating oil lines and saving weight. *The crank axis, input shaft, and output shaft create a stacked triangular layout that is compact, reduces engine length, and lowers the center of gravity. *Specially shaped breathing passageways between the chrome composite-plated aluminum cylinders reduce pumping loss to help increase power. *A high-efficiency, liquid-cooled aluminum oil cooler uses specially designed internal fins to dissipate heat and cool the oil. 4-Valve Cylinder Head (KP) *Compact valve train reduces cylinder head height. *Intake port and coolant passages developed using flow analysis for efficient cylinder filling, more power, and maximum cooling efficiency. *Camshafts are carved from forged chromoly billet, which is more than one-half pound lighter than cast cams. The cams and tappets are treated with soft nitriding to prevent galling and seizing with the aggressive, high-lift profiles *Forged sintered aluminum spring retainers are half the weight of steel retainers and allow higher rpm