A while back I posted a thread complaining about how I suspected my Wahoo KICKR Snap wasn’t accurate. I resided to the fact that it was likely my legs to blame for a lower-than-expected FTP.
I don’t have a power-meter to test it against, but after 5 weeks of training, yesterday I decided another Ramp Test was in order. I had previously attempted two of them (discarded one).
The story goes like this. Start Ramp Test, experience very elevated heart rate levels at wattages that are a full zone lower than what I would expect those values to be at, (I.e. Z3 heart rate at Z2 watts.), attempt to persist, and finally blow up before even reaching my target wattage that would give me my current FTP (260w). We know that the Ramp Test takes 75% of your highest 1-minute power, so for example, that would be: 347w for a person with an FTP of 260. On 3 attempted Ramp Tests I couldn’t even hit that number.
I decided to do an advanced or Factory Spindown on the Wahoo app, thinking that there HAS to be an issue with accuracy. After doing this, in a moment of frustration, I decided I’d do a power test with the Wahoo app and see what I could do. This turned into a 2x8-min FTP test in which this happened. 334w and 337w NP for 8-min in a garage with 80º F ambient air temp on top of a fail Ramp Test that was attempted 10 min prior. So, less than ideal testing conditions. Totally baffling. How could this be? I just bailed on a Ramp Test 10 minutes earlier in which I could even hit the same power numbers?
This leads to two conclusions. My FTP is actually 300w and the Wahoo app is displaying accurate power. TrainerRoad app is broken and is displaying inaccurate numbers. My trainer needed a factory spindown all along. Or I massively overachieved on the 8-minute test.
I wish I could be more scientific with this, but regardless. Something is/was off and I’m hopeful that it’s now fixed.
Anyone else have similiar experiences?