25mm are what I'm using on them.


These are all on Mod cars running 5.5/6.5/7.5's. All my Esc's from the tekin RSX to the Orion R10.1's come off pretty hot after a 10 minute race. Definitely fan territory. Like I said, I just wondered if anyone was using a particular fan they found that seemed to last longer than the others consistently. Most of my high end Esc's, using the included fans, the fans last a year or so. But some last a week. A few have lasted years.

Today's failed TrackStar fan was in a 7.5 powered 2wd buggy. Yet one Tekin fan in a 4wd SCT has lasted over two years now. No consistency here...