ZMR 250 motor-protector zip-tied

After flying nearly 12 months, the lower bearings of the DYS BE1806 on my ZMR250 are worn out. On one motor the lower bearing is finally broken. I think this is because of all the mud, that gets to the bearing by the holes in the ZMR250 arm.

So I designed a motor-protector that fits on the arm without demounting the motor screws. Just slip the protector on the arm and zip-tie it. Be aware, there is a small version for 1806-motors and a bigger version that fits up to 2205 motors. Both are des