Built with Character The new single-cylinder engine sees almost every component redesigned when compared to the previous generation DR-Z400S and DR-Z400SM. The result is smooth torque and power throughout the engine’s operating range, as well as great usability. Strong low-end power combines with increased output at higher rpm to deliver free-revving performance throughout the rev range and powerful acceleration from a standing start, making it the ideal playmate for the rider’s chosen playground.
The new slipper clutch gives controllability and positive clutch engagement both on and off-road. The assist function leverages a precision-engineered cam to engage the clutch sleeve hub and pressure disc together and efficiently transfer torque to the rear wheel under acceleration, all while using softer clutch springs. As a result, it reduces the amount of rider input required on the clutch lever, and improves operation. The slipper clutch partially disengages when downshifting to decelerate to mitigate the effect of engine braking, providing smoother deceleration. This function enables the rider to shift down with greater confidence and maintain better control.
The new exhaust features a double-wall silencer design that helps protect the rider’s legs from heat, and creates a slim profile. Both the exhaust pipe and silencer use stainless steel, which helps to greatly enhance the overall visual appeal and look of quality. The exhaust system also features a dual-stage catalytic converter and new O2 sensor that help meet Euro 5B emissions standards.