Looking for a replacement motor for a rad runner 2. Aftermarket is fine.
Area13 should have that motor and may have a true 750 bufang motor as well.
you may know but it is a fairly simple swapping of the motor to into your wheel.
Is it this one (https://area13ebikes.com/products/bafang-fat-bike-hub-motor)? It says not compatible with Radrunner 1 but doesn't mention Radrunner 2. Does it connect to the original controller?