Originally Posted by
DaveW
I have no experience with those particular screens, but even if this prevents fin damage...
IMO, any screen located right on the face of a radiator is much more likely to block enough of the radiator to cause an overheating issue, especially if you run through tall grass, etc., which will accumulate on the screen. If the screen is further forward, and at a steep angle to the airflow, debris usually will accumulate mostly at the screen's rear end, still allowing the radiator face to be mostly unobstructed, allowing enough airflow to avoid overheating.