So the Cool Masters are the same size as the originals but I read that they spin faster. I watched a video about them and there was a "sharp whining" sound from the Cool Masters. Is this the same on the originals? I assume while riding you probably wouldn't hear them, but what about when stopped?
So then are the Mighty Mites even louder? They are the least expensive if one can wait a month or so.
FYI, I am really noise sensitive to high-frequency whines and find my new Cool-Master fans on my 2017 M8 Tri Glide to be heard at idle but the frequency is such from the approximate 8500 rpm's that it is not objectionable at all. Oddly, when I wear a 3/4 helmet with ear plugs, I can hear them more than if I just have in a set of foam ear plugs. My helmet seems to slightly amplify the sound. At anything other than idle, I can't hear the fans at all.
Those that are noise sensitive may want to consider sticking with the Cool-Masters as opposed to the Mighty Mites that reportedly spin at 13,500 rpm. I have obviously not heard the new Mighty Mites because they are just being released next month (March). Dave Sandel, the inventor reported that the Mighty Mites are within 1% of the Cool-Masters in terms of cooling efficiency.
However, one of our prolific posters and a site sponser, Kevin from DK Customs was using a similar product to the Mighty Mites for years on his 2014 TC103 Tri Glide and experienced ovalling of his cylinders due to reported excessive heat. Since the Cool-Masters are reportedly Love Jugs most efficient and slightly smaller profile than the originals, I personally chose them because Kevin's recent findings found the M8 cylinder head temps to be 300* plus when doing dyno pulls on a 2017 M8 Free Wheeler.
It is great that our website host, Papa Zook is a stocking dealer. Had I known that, I would have bought mine from him. BTW, it is a totally taste thing but I think the beautifully crafted stainless steel Cool-Master fans really add an interesting styling touch to the generally more boring left side of the M8 engine. They seem to compliment the new HD horn very nicely IMHO.