Westin has one
Of all things ... the Westin Grande Sukhumvit has a spin bike in its gym. I was running late this morning so I decided to give the WestinWorkout a try, and it turns out I could have given it "a spin."
I had called the gym previously to make inquiry, but the concept of spin-bike and spinner bike was, one supposes, lost in translation.
To bad I already bought the Cal Wow membership ... and that I'm changing hotels today.