Hi entjoles,
I just checked our exchange program and was surprised to see that we have already opened up the HV Pro motor exchange to the new 5.5 and 7.5 wind motors. Learn something every day!
Here is how the motor exchange works: You can exchange your existing HV 4.5 motor for any other 5mm shaft HV Pro wind motor for $45 (exchange price) plus $10 (exchange fee) You really don't need to purchase a new motor, since the RMF motors all have a new 120 day warranty.
We will not be adding an HV esc exchange into the newest HV Pro esc (with built-in lipo cut-off) for a couple of months yet. But you will receive a RMF HV esc with all of the new programming that still requires an external 4cell Smart Stop module (not included).
The exchange price is $69.
Just print and fill out one of the non-warranty (PDF) service forms linked at the top of both of the Replacement Options pages and follow the directions on the form. If you have questions, let me know.