gay gyms Chiang Mai
 

Anyone knows a hotel gym in Chiang Mai frequented by Asian gays?

do you mean THai or other Asian tourists?
Only 1 that springs to my mind-and no idea of how busy, is that 1-7 ''resort'' near the Hilton/1-2-come massageshop. Highly doubt if there is such a thing, esp if it is Asian tourists.
on either thaivisa/gay or one of the mainstream boards there is the usual man from Cmai - paagai or ?? who usually answers and knows all if you really want to find out.

Plenty of gay guys go to Power House Gym, in the mini complex fronted by Wawi Coffee behind the Bangkok Bank on Nimanhemin Rd.