- Sadly, the support site doc is severely lacking in details and uses the old “gearing doesn’t matter” cliche, that is not correct.
Simply find a gear that keeps the noise down, leaves your chain pretty straight (no sense increasing wear on your drivetrain with a crossed chain) and forget about shifting, even when you move in & out of the saddle.
However, the actual TR app does have a bit better info and specific recommendation to be in the small front chainring:
- We are most likely talking about the “Marginal Gains” end of things when we look at ERG gearing.
- I have been meaning to write a more comprehensive post about the options and potential impact. So much depends on variables like the rider history and ability, trainer ability (and limitations) and other interests like sound, drivetrain wear and others. This falls well into the “it depends…” world so there are no concrete answers without looking at a wide view.