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Negative fric value and low crr
Posted: Fri Mar 31, 2017 12:36 pm
by albafar
I just did a short but rather hard interval training with a hill round tour. Back home I checked calibration for the first time since summer. When I try to accept the suggested changes to the profile I get the message that the friction value is out of range (it suggests a change from 2,025 -> -1,059) Looks weird to me
Also the crr value at -0,0070 puzzles me. Comments and suggestions are welcome.
Re: Negative fric value and low crr
Posted: Fri Mar 31, 2017 2:01 pm
by Velocomp
Corrected ride file and profile are attached.
Please download this ride again, and do NOT perform a "Check Calibration" on the ride. Instead, just post the unadjusted ride file.
Also, if you have a ride file prior to the one in question, please post that ride file, too.
PS: Nice PowerStroke!
Re: Negative fric value and low crr
Posted: Fri Mar 31, 2017 6:22 pm
by albafar
Thanks John,
Just to be certain I understand you correctly:I download the profile and send it to the PowerPod. Go for another ride and send you the new ride file together with another recent file - correct?
Re: Negative fric value and low crr
Posted: Fri Mar 31, 2017 6:33 pm
by Velocomp
Yes, that will do just fine!
Re: Negative fric value and low crr
Posted: Sun Apr 02, 2017 11:51 am
by albafar
OK then - here comes todays file with the updated profile and an additional ride from last week (commuting so it includes a lot of stop&go.
Please don't get too impressed by todays rather smooth Powerstroke - it was a recovery ride

Re: Negative fric value and low crr
Posted: Sun Apr 02, 2017 6:03 pm
by Velocomp
Your 4/2 ride looks fine!
Re: Negative fric value and low crr
Posted: Mon Apr 03, 2017 3:33 am
by albafar
Many thanks John - I will stick with that then!