Originally Posted by
sstang13
I can only go by HR on my rides, but for some reason my HR is always like 10-20bpm higher (estimate) than what it would be on the trainer. I'm trying to figure stuff out and work it all out and find what my max is outdoors, but even today I kind of had to go a little quicker to make it home on time so I couldn't take it as easy as I should and usually do. Plus I go hard on the hills and to my dismay there were a LOT on the route I chose today.
You might not be going hard enough on the trainer or you might be dehydrated outdoors. With power, I have the same HR indoors and outdoors, but without power I would definitely not be pushing nearly as hard indoors just because it seems to hurt a lot more and makes me sweat like crazy. My 20 min power outside feels more like 5 min inside, just based on leg feel, but if I concentrate I can get the full 20 mins. Feels more like an hour though and by the end of it I can see steam rising off my arms in the garage and I'm covered with little sweat dew droplets all over.