2018 Honda CBR500R ABS-Awaken your 500 senses. Optimum power, DOHC liquid-cooled parallel-twin engine, PGM-FI electronic fuel injection. Smooth shifting, six-speed. Features may include: Engine & Drivetrain Optimum power characteristics The DOHC liquid-cooled parallel-twin engine uses a square bore & stroke of 67 mm x 66.8 mm for an optimum combination of strong low-end torque and horsepower and excellent top-end performance. Smooth and compact Engine vibration is kept to a minimum by using crank pins phased at 180 degrees and a balancer shaft behind the cylinders, which also contributes to the engine’s compact size. Crisp throttle response PGM-FI electronic fuel injection keeps the engine running efficiently in all conditions and ensures crisp throttle response. Small & lightweight water pump Careful flow analysis of the cooling system resulted in a water pump that’s small and lightweight, yet still more than capable of keeping the engine running its best at high output levels. Maximized flow efficiency In order to maximize air-intake and exhaust efficiency, the path from the air cleaner through the intake ports to the exhaust pipe was made as straight as possible. Reduced weight & friction The four valves in each of the DOHC cylinder heads have narrow stems, thereby reducing weight and friction and increasing efficiency. High-tech design A light and compact roller- rocker-arm assembly and shim-type valve adjustment allows a lower valve-spring load for reduced friction and a compact cylinder head. Improved durability The pins in the silent cam chain have been treated with vanadium, which both reduces friction and improves durability. Lightweight pistons use an advanced manufacturing process for enhanced durability and performance. Reduced friction The oil pump’s internal relief structure uses the same design as found in the CBR1000RR, which reduces friction, improves aeration performance and simplifies the shape of the oil pan. Smooth shifting The design of the shifting mechanism in the six-speed gearbox results in smooth, precise shifting. The sound of power The internal structure of the CBR500R's muffler helps produce an authoritative exhaust note and improves the bike’s mass centralization.