Hi guys -
First off - thanks for everything. Zwift is the single most awesome thing I’ve seen all year.
On to the questions. I have a side-by-side setup right now with a Computrainer and a supported Elite trainer with variable manual resistance set to level 3 as recommended. I ride the computrainer, and my son (an excellent juniors racer) rides the dumb trainer for the time being.
On both trainers, the power calculations seem off. He and I will start at the same time. I’ll put down 250-300 watts in my 53x15 on a straight away section and show that I’m going 21 MPH (when, on level ground, in normal conditions, I’d be putting down around 25-27 in the gearing that I’m in). However, he’ll be right beside me in a 46x25 spinning along going 26-27 MPH.
Second, I’ll be in my 53x12 sprinting at 100+ cadence and the most I can hit is 28-29MPH. That normally nets me around 34-35MPH on the road. He’ll pop down to the 46x14 and whip out an astonishing 32MPH.
Third, on climbs, he zips up showing 10+ w/kg. He can sustain 6 w/kg in a 10K TT in real life, but 10w/kg seems a bit out of whack. On the same hill, I’ll be spinning 80 RPM in a 53x25 and going 7MPH. Also, if I get out of my saddle and really hammer it, my wattage drops to like 150 or below. On the road using my road rear wheel PM, I can peak above 1,000w. On Zwift with the Computrainer, the most I’ve ever mustered out was a lowly 550w.
I’ve done calibration on my CT. Is there something I’m missing?
The next step is to get the kid a power trainer, but in the mean time, I’d like for it to be at least a little realistic for him.