Difficulty to stay at low wattage

General Discussion
1

Hi all,

I use a Tacx Flow Smart with a cheap MTB (28 gears) and during workouts at the warm up or recovery phase, it’s almost impossible for me to keep a low wattage (70 or something).

If I want to produce 65 or 70 watts I’d have to pedal at 25-30 rpm, maybe less. If I’m at 64-70 rpm the wattage will be the double of what it should be.

In another hand, I have no problem to get 150-180 watts at 80rpm during the workout itself.

Is it normal? Is it because during warm up the ERG mode is off and I have to shift? Am I doing something wrong?

2

ERG should be on for whole workout including warmups. You should never have to change gear to hit target watts as ERG will adjust your resistance appropriate to your cadence.

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3

Depen6on your trainer, sometimes you will need to change gears to stay in the trainers functional range

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