Long time mountain biker that started Trainer Road back in October 2019 vowing to not lose fitness over the winter. Did mostly indoor riding until about March when the weather opened up and the trails dried out. I don’t have a power meter, so have to ride outdoor based on RPE. We have lots of 10 to 20 minute, relatively even grade, mountain bike trails here that are prefect for threshold interval repeats. However, I’ve found that for me VO2 max work is better done on trainer so you can hit the repeats on a more predictable basis. I look at those non trail days as a necessary evil to get faster. I’d rather be on dirt any day, but have seen a nice FTP boost over the last 6 months.
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