The power curve I am using is one that was tested with a power tap.
And which one is that?
Blackburn Tech Fluid
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Like you’ve stated, your FTP does not matter as long as you keep your setup protocol consistent. HR can largely be ignored; I use it as a check more than anything else.
precision > accuracy
I disagree
You are welcome to come by and borrow my power tap to check =)
Thanks for the offer but I’m in Houston these days. I might be able to steal one from a friend.
Like you’ve stated, your FTP does not matter as long as you keep your setup protocol consistent. HR can largely be ignored; I use it as a check more than anything else.
precision > accuracy
I disagree
Lovely. With which part? Jack already pointed out one of my many flaws, I’d be glad for you to expand upon it.
I just want to make sure I’m clear…
I run a PowerTap on my KK. Is it CORRECT to assume that clamping force, tire pressure, etc. has NO impact on my measured wattage coming from my PowerTap (e.g., a watt, is a watt, is a watt, independent of the clamping force)? I understand how this would not apply to virtual power.
yep!
you are good to go.
might want to zero it after you warm up though.
gets hot around the wheel
I just want to make sure I’m clear…
I run a PowerTap on my KK. Is it CORRECT to assume that clamping force, tire pressure, etc. has NO impact on my measured wattage coming from my PowerTap (e.g., a watt, is a watt, is a watt, independent of the clamping force)? I understand how this would not apply to virtual power.
Power curve from Blackburn’s website:
.
I just want to make sure I’m clear…
I run a PowerTap on my KK. Is it CORRECT to assume that clamping force, tire pressure, etc. has NO impact on my measured wattage coming from my PowerTap (e.g., a watt, is a watt, is a watt, independent of the clamping force)? I understand how this would not apply to virtual power.
In general yes, however there have been instances where tightening of the trainer’s skewer clamps affects the powertap’s function.
Power curve from Blackburn’s website:
The power curve is wrong on their website. I confirmed this. This is why I am using one that was tested with a power tap.
Look at it 30mph is only 200 watts. I don’t think so…
Look at it 30mph is only 200 watts. I don’t think so…
Your HIM bike splits suggest that your FTP is not within 150 watts of 400.
I know my FTP is not 400. I weigh 180 and my latest bike split was. 2:30 at Timberman (somewhat hilly).
I don’t use the LTHR that trainerroad gives. It doesn’t correspond with the old zones I used to use, or with my RPE. What I find works better for approximating your LTHR is to take the HR you maintained for the last 10 minutes of a 20 minute test, then subtract your resting heart rate, then multiply by 95% and add that result to your resting HR. So for me I usually hit around 171 for the test, my resting HR is around 45, which using the above formula gives me a LTHR of 165. Much closer to what I’ve approximated before using testing/race results etc. I know its not my actual LTHR, but it does correspond the the HR I’d see during intervals around FTP which I would guess is probably ± 2 or 3 bpm of my actual LTHR. The heart rate zones in trainerroad don’t work for me at all, today I was spinning along at about .69 IF and according to TR I was solid tempo (Z3) with a few forays into sweet spot. With power I don’t even worry about it, the only time I pay attention to my HR is when it tells me I’m overdoing it. When I am putting out sweet spot power, but RPE tells me its VO2max power, and my heart rate says zone 2, its time to take a couple easy days 