Originally Posted by
motosonic
I don't have a cadence sensor, so, I'm not totally sure. But, there is 0 need to stand to pedal, ever. If I do, it's just way too easy. But I can easily ride the biggest gear and spin as fast as I can.. Can I sustain that? no, I don't know who can, lol.. but, I don't feel like it's enough resistance to even simulate riding in that gear on a flat.. you know what I mean? I would expect in the biggest gear that it would be difficult to spin the wheel and I'd be trying hard to get it around.. Just doesn't do that. Maybe I'll see if I can demo a trainer at a local bike shop and do a comparison.
If you can try another one do that. There could be an issue with your trainer, or it could just be you are stronger than you think you are.
I would recommend getting a cadence sensor, but you can always count revolutions for 15 seconds and multiply that by 4 to get your cadence. That and a heart rate monitor will help you with your trainer sessions. You can start to do workouts that target both and take away the monotony of riding in place.