Programmable ECU Control for the Honda Grom / MSX SF 125 Platform.
The aRacer RC Mini X ECU for the Honda Grom / MSX 125 / MSX SF 125 2016–2020 is a full replacement programmable ECU system designed for riders, builders, and tuners who want more control than the factory ECU can provide.
What It Is
A compact programmable engine control system for supported Honda Grom and MSX SF 125 models. The RC Mini X replaces the factory ECU and allows deeper control over fuel delivery, ignition timing, engine response, and supported aRacer accessories.
What It Does
- Full replacement ECU for supported 2016–2020 Honda Grom / MSX SF 125 models
- Programmable fuel and ignition control
- Improved tuning flexibility for performance builds
- Supports supported aRacer tuning tools and accessories
- Designed for riders, shops, and tuners who need more control than the stock ECU
Fitment
Honda Grom SF 125 2016 MSX SF 125 2016
Honda Grom SF 125 2017 MSX SF 125 2017
Honda Grom SF 125 2018 MSX SF 125 2018
Honda Grom SF 125 2019 MSX SF 125 2019
Honda Grom SF 125 2020 MSX SF 125 2020
Please confirm your exact model year, market version, ECU connector, and wiring configuration before ordering.
Recommended Accessories
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aRacer AF3 Wideband AFR Module – for wideband AFR monitoring and tuning support
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aRacer PRO-LINK USB Communication Adapter – for ECU communication and calibration access
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aRacer DG2 Display Gauge – for supported ECU data display
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aRacer R Button – for supported ECU function control where applicable
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aRacer 1-to-2 Cable Splitter Harness – for supported accessory expansion
Who It Is For
This ECU is intended for Honda Grom and MSX SF 125 owners who are building, testing, tuning, racing, or modifying the platform beyond the limits of the factory ECU.
Competition Use Notice
Some products are intended for closed-course competition, off-road, testing, research, or development use only where applicable. Customer is responsible for compliance with all applicable local, state, and federal laws and regulations.
California Proposition 65 Warning
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
