Epoxy a screen over the holes. That will at least keep out the larger more damaging stuff.senlin said:Hi TuomasK, I'm looking at getting one of these motors. I vented my DD hub motors and it works well, I was wandering if there are issues with dirt getting into the gears after venting a geared hub motor? I won't be using mine off road.
PS: I run sustained 1500W. No heat issues.