The Z125 PRO’s single-cylinder, 4-stroke SOHC engine displaces 125cc thanks to its oversquare 56.0 x 50.6mm bore and stroke. The 125cc engine is tuned for street riding with an exciting and sporty, yet easy to ride power delivery. Unlike most small-displacement engines the engine of the Z125 PRO features digital fuel injection with a 24mm throttle body, for smooth operation and quick starts.

The 2.6-liter air box is positioned above and forward of the cylinder head, contributing to the sporty power feeling and helping to minimize intake noise. Cam profiles and intake port design also contribute to the smooth, quick-revving engine character, as well as stable idling.

The Z125 PRO motorcycle has easy, consistent starts thanks to its electric start, digital fuel injection and the Kawasaki Automatic Compression Release (KACR), which utilizes the exhaust valve to release cylinder pressure during starting.

The Z125 PRO uses a four-speed transmission with a manual clutch and clutch lever. It has a very easy, light clutch-lever feel and positive engagement. Shifting comes through a link-type shifter lever very similar to that of a full size sportbike, so that the Z125 PRO’s shift lever requires little load pressure to engage, another major plus for riders.

CHASSIS & SUSPENSION

The compact chassis, along with sporty suspension and tires, enable riders to enjoy the light, nimble handling one would expect from a Kawasaki Z motorcycle.

Up front are the aggressive 30mm inverted front forks, which show you it means business. The forks feature nearly 4 inches of travel and excellent rigidity while keeping unsprung weight low for sporty riding. Up top is a lightweight aluminum upper triple clamp.

The single shock rear suspension is offset for a compact package and sporty handling. The shock’s mounting angle is optimized for the Z125 PRO for superb shock action and great ride comfort. The rear shock has 4-way preload adjustability, which allows riders to set the spring preload for their weight or to accommodate a passenger. Contributing to the sporty characteristics and looks are the 12-inch cast aluminum wheels, which cut down on unsprung weight and are wrapped in 100/90 and 120/70 tires front and rear. The tire sizes and tread pattern were chosen to optimize the Z125 PRO’s light and nimble riding characteristics.

The Z125 PRO is built on a high-tensile, steel backbone frame with sufficient tube diameter to enable two-up riding. The frame backbone measures 48.6mm in diameter and is supported by 25.4mm lateral tubes. The rear frame tubes are 22.2mm in diameter. The Z125 PRO also features a highly rigid box-section swingarm.

BRAKES

The Z125 PRO features hydraulic disc brakes front and rear with Nissin calipers. Up front is a 200mm petal-style disc and a 184mm petal-style disc on the rear wheel.