Honda CRF250F Athlon Programmable ECU

Honda CRF250F Athlon Programmable ECU

This is a product we received from Athlon, but did not use or test it.  
We have just one brand new example of this product for sale - once it is gone, it's gone.

This is a fully programmable ECU for the CRF250F (will not fit 300F).  The base map is set up for a performance range to cover a stock bike up to a bike with an open intake and full race exhaust system. 

The ECU is programmable via an APP that is available to download from Athlon.    We are not able to provide technical support on this product since we currently do not have direct factory involvement with them.  But, we have used them on them on other bikes and it is fairly simple to pair the ECU to your phone, since the app guides you thru it. There is some information on YouTube on how to program it etc too...

This item is provided in the original factory packaging, with all factory inserts included such as PIN number for setup, etc.  We have nothing else to provide with this ECU and it is presented like it would be when purchased from Athlon.

Please note - all sales on this unit are final.  No returns of any kind.  It is a one-off unit brand-new, tested and set-up from the factory - never used or connected to a bike.

This tuner fits all Honda CRF250F from 2019 thru 2025.

It will NOT fit the 2026+ Honda CRF300F - the connectors and electrical architecture are much different on that bike.

Note: We recommend using an EFI tuner whenever you install an aftermarket exhaust and/or our High-Performance Intake System.  

Note:  This tuner is for closed-course off-road competition use only is not EPA approved or for highway use.