Hi guys (and gals).
I read a lot of posts, articles on ERG mode.
Thought I got it.
Seems to be hard to grasp.
I really need your help on that one.
I read many topics here, but it doesn’t seem to look like what I experienced.
To understand my situation, I need to explain from the beginning because I received a lot of questions on other platforms asking me more precision to better explain the context. So here it is.
In September, I started by trying some rides on Zwift with an Indoor Bike (Mekbelt SM36).
One belt (that doesn’t stop like on our road bikes, no rattle of the cassette so first time I almost got thrown out of the bike), cadence sensor and speed sensor incorporated into the bike with easy pairing with Zwift, right of the box.
I started to train for FTP a couple of weeks later and got it at 149 at the first try.
We all need to start somewhere.
I have to turn a knob to increase/decrease the power during the workouts and trainings.
I do my best to not overshoot or undershoot.
At some point, having to set it at a certain wattage for 10 seconds, then go back down at 85W/85RPM, then go up at 180W/100RPM for 5 seconds, etc, didn’t give me enough time to pedal, increase the power on the knob and keep the cadence at the same time. I did my best.
I talked about it with my wife.
She bought me a Wahoo Kickr Smart Trainer V5 for my birthday.
Great pleasure to ride on my own bike.
But it is also needing a getting used to and to add to that, now I have my brain comparing the power in my legs (the work I had to put in) on my Indoor bike with the effort now I have to put on the Kickr and they are really not the same.
What I experience is that my Kickr is too easy.
I’m on the 6 weeks workout FTP Builder. When the workout ask me to warm up, it starts at 65W/85RPM and increase power from 65 to 120W, by 5W during 10 minutes.
I cannot feel any difference between the 65W and the 120W, not even the 4 min at 145W. Because I can compare with my Indoor bike (which didn’t have ERG mode), my legs were hurting, so, if I want to compare, 145W on my Kickr now is about 95W on my Mekbelt then. My heart rate don’t event go higher than 135BPM, and I was at 185BPM on my Mekbelt.
So today, I turned the ERG off.
Now it is harder, but it is also all over the place.
Power felt by the Kickr make it react (and sending me messages to increase/decrease cadence/power) but that’s what I want to do but if I go faster, this means I have to put more power on the pedals but now I push at 460W, when the training phase is at 125W. So the Kickr freaks out.
Just to give you an image, I started a new FTP tonight. Went to 240W, steady ( as much I could so I overshooted at 280W and back at 245W) and in the end, my FTP was increased slightly at 163 (ERG turned off). But when I started the warm up, I needed to be at 85RPM for the 65W. Each leg stoke were at 145W to be able to keep RPM at 85 ??? I don’t even know what to do. I changed gears but, when I did, I lost everything because power go down to 30W and I was pedaling at 100RPM. Changed gear again and now I’m at 640W, so I have to change gear again until I can feel and get to the right power and cadence.
I thought that I would only have to stay on the same gear and adjust the cadence and ERG would take care of the rest. But now, I don’t understand anymore.
I also asked Wahoo if I need to calibrate the Kickr but Wahoo told me that it calibrates itself.
How can I get my Kickr, in ERG mode, to have the right power as in ERG Off mode ?
What do I do wrong ?
What do I don’t understand ?
(ERG On is more stable than when ERG off).
By the way, Trainer difficulty is at MAX in the settings.