I was traveling last week and decided to only bring my HR monitor. I did a few “Free Rides” on a spin bike with just the HR monitor. Turns out that TR will only estimate TSS for outdoor rides without a power meter. No problem, I’ll just set the TSS manually… nope, you can’t. I confirmed this with support. I ended up manually adding an additional completed workout on those days, where TR actually does allow you to estimate the TSS yourself.
Not the end of the world, but it would be nice if TR estimated the TSS for an indoor ride with only HR data, or at least let us just enter the TSS on the file with the HR data.