Originally Posted by
PeteHski
AFAIK pedal feel (resistance) is only a function of your trainer responding to the variable slope value Zwift is broadcasting to it. Drafting affects your avatar speed, but not your actual trainer resistance.
For Zwift to vary your trainer resistance with drafting would require another trainer control variable. I don’t know if this is possible with the current Smart trainer control protocol. I doubt it otherwise Zwift and/or other apps would probably have done this by now. I’m not aware of any other apps that can do this. They can simulate drafting on the screen and you can reduce power to maintain speed in the draft, but your trainer resistance is driven only by the slope variable.
If I’ve missed something then it would be very interesting to know.
Again, I’m pretty ignorant on the programming - and hardware interface requirements - that would be required. I guess it would be pretty complex, affected not only by the distance to the rider ahead, but also the number of riders, and the speed, as an additional layer on top of slope…but it still seems possible.