power too low after new cal ride

Post Reply
pajobv
Posts: 12
Joined: Thu Oct 18, 2012 6:12 am

power too low after new cal ride

Post by pajobv »

After lowering my steer for about 1 cm i did a new cal ride. My power after that seems to low, i think possible 30 watts for my NP, according to my heart rate. I think the aero factor is a little bit low, i was riding on the hoods in the cal ride.
Attachments
iBike Ride_23_04_2016_0920_5_km_CalRide.ibr
(56.28 KiB) Downloaded 288 times
pajobv
Posts: 12
Joined: Thu Oct 18, 2012 6:12 am

Re: power to low after new cal ride

Post by pajobv »

Here is the file from the ride after the cal ride.
Attachments
iBike Ride_23_04_2016_0930_51_km.ibr
(521.3 KiB) Downloaded 283 times
Velocomp
Velocomp CEO
Posts: 7793
Joined: Fri Jan 11, 2008 8:43 am

Re: power to low after new cal ride

Post by Velocomp »

Before your new cal ride your wind factor was 0.691

The wind factor measured in your new cal ride was 0.687--an immaterial difference!

So, the new cal ride had no effect on your Newton's settings.

Remember that NP is heavily dependent on the amount of surging and coasting you do. In this ride you were pedaling almost all of the time, at a pretty constant speed, so that NP is close to average watts.

Please send a ride file done from before your new calibration--perhaps that will reveal something.
John Hamann
pajobv
Posts: 12
Joined: Thu Oct 18, 2012 6:12 am

Re: power too low after new cal ride

Post by pajobv »

Ok John thanks, here is a file before.
Attachments
iBike Ride_13_04_2016_1712_47_km.ibr
(483.55 KiB) Downloaded 275 times
pajobv
Posts: 12
Joined: Thu Oct 18, 2012 6:12 am

Re: power too low after new cal ride

Post by pajobv »

I ordered a iBike solo front mount, should i do a new cal ride again when i received this? The newton is now on my stem.
Velocomp
Velocomp CEO
Posts: 7793
Joined: Fri Jan 11, 2008 8:43 am

Re: power too low after new cal ride

Post by Velocomp »

pajobv wrote:Ok John thanks, here is a file before.
The two files are within 20W of each other, plus you did some sprint interval work at the end of your earlier file.

You are OK
John Hamann
Velocomp
Velocomp CEO
Posts: 7793
Joined: Fri Jan 11, 2008 8:43 am

Re: power too low after new cal ride

Post by Velocomp »

pajobv wrote:I ordered a iBike solo front mount, should i do a new cal ride again when i received this? The newton is now on my stem.
Yes, you will need to do a new cal ride. Your wind factor will be significantly different.
John Hamann
pajobv
Posts: 12
Joined: Thu Oct 18, 2012 6:12 am

Re: power too low after new cal ride

Post by pajobv »

Thanks John for the quick response!
Post Reply