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ARacer RC Super XX Ultimate Engine Management System ECU will completely replace the OEM ECU on the Kawasaki Z125 Pro 2018+! This is not a piggyback ECU, the RC Super XX completely removes the OEM ECU! This will eliminate all of the issues that would occur with the OEM ECU, giving you full control of how the engine will run without any worries of random changes that typically occurs with a piggyback ECU. Adjustments could be made with a laptop. The RC Super X is 100% plug and play, no wiring needed!
The aRacer RC Super XX PRO ECU for the Kawasaki Z125 Pro 2018+ is a full-replacement programmable engine control system developed for riders, builders, race teams, and professional tuners who need greater control than the factory ECU provides.
Designed for modified and competition-focused builds, the RC Super XX PRO provides advanced access to fuel delivery, ignition timing, engine response, tuning data, and supported aRacer accessories. It gives experienced users a flexible ECU platform for dyno calibration, track development, engine modifications, and other performance applications.
The RC Super XX PRO replaces the original ECU on supported Kawasaki Z125 Pro 2018+ models. Compared with the more compact RC Mini XX platform, the Super XX PRO is intended for builds requiring a broader performance ecosystem, expanded accessory support, and more advanced calibration capability.
Kawasaki Z125 Pro 2018+
Fitment note: Model-year designations, electrical systems, ECU connectors, and wiring configurations can vary by market. Confirm the exact motorcycle model, production year, market version, ECU connector, wiring harness, and supported software configuration before ordering or installing this product.
The RC Super XX PRO is intended for experienced users who need a programmable ECU platform for applications such as:
Professional installation and calibration by an experienced aRacer dealer or qualified tuner are strongly recommended, particularly for motorcycles with substantial engine, fuel-system, or electrical modifications.
Accessory compatibility can depend on the ECU configuration, motorcycle wiring, software version, and installation requirements. Confirm compatibility before ordering.
The 2018-and-newer Kawasaki Z125 pro is a popular platform for street-performance projects, mini-moto racing, engine development, and custom builds. As modifications become more extensive, the factory ECU can limit a tuner’s ability to calibrate fuel delivery, ignition behavior, and supporting systems properly.
The aRacer RC Super XX PRO provides a more capable foundation for advanced builds. Its programmable ECU architecture, supported accessory ecosystem, and calibration flexibility allow professional tuners and experienced builders to develop a setup around the motorcycle’s actual engine configuration and intended use.
Some aRacer products are intended for closed-course competition, off-road operation, testing, research, or development use only where applicable. Installation or use on pollution-controlled vehicles may be restricted by local, state, or federal law. The purchaser and installer are responsible for determining product suitability and complying with all applicable laws and regulations.
