Well, I won’t try to tell you what is best, cuz I don’t know. That said, I too am about 90 percent MTB, occasional road rider. My natural cadence is just about like yours. On the trainer, 80 -85 feels natural, over 90 starts to feel silly and unrealistic compared to what I do in the real world on the trails I ride, which in my area are steep, punchy and technical. I am trying to stretch my comfort envelope, but I can’t help but wonder if I’d be better off doing my trainer work at lower rpms, because that’s my reality on the trails.
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