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Re: Controlling the Kickr via external power meter now possible [Felt_Rider]
Felt_Rider wrote:
Brad81 wrote:
I haven't had the chance to upgrade my kickr yet as I don't have an Iphone. I have vectors on my bike that control the kickr through TR and now just use the resistance mode instead of ERG mode since you get a big spike in power at the start of an interval when in ERG mode which can be quite an issue especially when you are doing VO2max and anaerobic intervals, the intervals are usually hard enough with out a spike in power at the start, the last thing I need is to push through an extra 100w for 5-10sec at the start of an anaerobic interval.
In resistance mode I can create much smoother power through the intervals in a session than what ERG mode can, so really I could just use a fluid trainer with TR and my vectors and get exactly the same result, defeats the purpose of having this expensive kickr really


Exactly what I could have written. Yeouch!! That first few seconds of a high L4 to L5 interval combined with a spike is absolutely brutal - IMO. I've tweaked my knees coming from low rest resistance to that spike. I tell you the other thing I have experienced in both TR and PP at random times is the resistance not easing up once the interval is done. That too is painful when suffering badly and barely making to the end of the higher intensity interval and then resistance is held another 30 seconds or so past the interval. That too is brutal.

I may need to add some intensity ramp segments of a few seconds in front of the training intervals so that the Kickr has some time to adjust rather than having an abrupt rest to interval jump.


I've actually seen the "erg doesn't adjust" bug when coding in Tour de Giro. We'll send the thing a "adjust erg setting to ___W" ANT+ packet and it will acknowledge successful receipt, but then won't change the physical resistance.

I've got a couple interval workouts I've built, and it's a workout-killer if the thing doesn't adjust going into or coming out of a hard interval.

The best "fix" I've got is to send the change requests intermittently, not just when the workout changes, but that can cause issues too. The kickr is a bit of a diva.

Your solution of having a ramp is good too: Assuming TR sends the same "set erg mode level" packet once per workout-level change, then it forces it to send a pile of them going into and out of the hard interval, increasing the likelihood one of them will stick (90% of them usually do, but if the one that misses is the start or end of an interval, :sadface:)

STAC Zero Trainer - Zero noise, zero tire contact, zero moving parts. Suffer in Silence starting fall 2016
Last edited by: AHare: Aug 20, 15 4:44

Edit Log:

  • Post edited by AHare (Dawson Saddle) on Aug 20, 15 4:43
  • Post edited by AHare (Dawson Saddle) on Aug 20, 15 4:44