dcrainmaker wrote:
mcmetal wrote:
First of all, it's only the first 12 minutes. I've never had any significant drift (more than a difference of 5) after I calibrated any of my CTs at 12 minutes. Secondly, the kicker doesn't use a tire contact. Of course a tire will warm up and change the calibration. The kicker without a tire should be comparable to a Velotron. Now on my Velotron, I get 0 drift from minute 1 to however long I'm on my workout. So I would turn this question back at you and ask, why should the kicker have any drift at all EVER, when it doesn't use a tire based contact point? The Velotron doesn't.It's not the first 12 minutes (on CT). I used to think I'd be good after about 10-15, but I've seen/have pretty of files where it's taking more like 15-20 minutes to stabilize fully.
As for the KICKR and warm-up, I don't know - that's a question for Wahoo. I've said since my original review I always calibrate about 10-20 mins in on it.
Just some thoughts
My KICKR reads about 13 watts less than my Vectors at 300 watts without any warmup (I do leave mine plugged in all the time), at the end of an hour it might read 18 watts lower than my Vectors so a 5 watt drift. (I know use the Beta firmware and it works perfectly - just some background info)
My Question - do people seeing this LARGE drift what gear ratio are you using? I always use 39X21, this keeps my chain running pretty straight, but more importantly it makes the system run slower (IE the flywheel or belt or whatever internals are in the KICKR) than the 53X12,13,14,21 XX. I believe using a climbing gear ie 39X21 you will have less drift and a more responsive KICKR and could even possibly extend the life of the KICKR.
I have no proof what so ever of the above, just some food for thought, sure my avg speed at 300watts for an hour might only be 21KPH but who the hell cares. If your using speed as a metric on your trainer you're doing it wrong anyways.
I've worked with 6 KICKRS and none have had this drift issue (Sure some are +-10 watts compared to my Vectors at 300 watts) but don't seem to be having the major issues reported here.