J3D 3D printed motor fan. Slip this on the pinion side of your brushed motors and run them for break-in sessions, The added weight helps create a load on the motor and also self cools the motor as it runs.
Orders placed after 3/11 will not be processed or shipped until March 25th when we return . All online orders will be created and shipped in the order they are placed when we return. We apologize for the disruption to our normal production time but thank you for your patience!