First ride...Need feedback.

thomask · Post by **thomask** » Wed Dec 21, 2016 3:56 pm

Hi,

This is my first ride with the PP. Did calibration as described in the instructions. And then an "out and back" ride....Power was all over the place...I could not get a somewhat steady reading at all! Attached is my IBR file...
Please let me know if there is something I need to tweak. Also, you could ignore the last 2 miles (from 8.75 to 10) as I did not start my ride exactly from that point.

Many thanks!
Ken

Velocomp · Post by **Velocomp** » Wed Dec 21, 2016 4:19 pm

It looks like you are using a Garmin GSC-10 sensor, which is old technology and does not broadcast a strong signal. You are getting speed dropouts in your ride file.

You should update to the new, magnet-less speed and cadence sensors from Garmin or Wahoo. They work much better and are more convenient.

Once you have a good sensor on your bike please do another ride and post the results.

thomask · Post by **thomask** » Wed Dec 21, 2016 4:52 pm

I use the Cateye ISC-10 which is ANT+ Speed and Cadence sensor. Works well for the Cateye computer. I did not witness any speed or cadence drops during my ride on the Cateye! I don't understand as to why the PP would need a stronger signal to function as compared to the computer....

Thank you.

Velocomp · Post by **Velocomp** » Wed Dec 21, 2016 8:51 pm

Some sensors have better transmitters than others.

Your sensor is showing lots of speed and cadence dropouts. This sensor design looks very similar to the GSC-10...

It may also be related to position of your bike computer and PowerPod on your bike.

The bottom line is that newer-generation sensors work better.

thomask · Post by **thomask** » Wed Dec 21, 2016 9:23 pm

Thanks!

I looked into the magnet less speed and cadence sensor made by Garmin. The issue with this is that Garmin happens to transmit 6 digit wireless code and the Cateye EVO + can only take a max of 5 digits. So it won't work!

Going forward in order to make the PP work, I would need to invest in the following:

Garmin 520 computer at about $299.00
Garmin magnet less speed and cadence sensors: $69.00
Add the PP: $299.00

Total cost: $667.00!

Does not make much economic sense, does it? I wish Velocomp had made it clear that the PP is only compatible with Garmin style magnet less sensors and not any ANT+ enabled sensors, which is very misleading!

PS. Just read another post on this forum...Even with Garmin magnet less speed sensor, the values are all over the place...
https://ibikeforum.com/viewtopic.php?f= ... ess#p19661

Velocomp · Post by **Velocomp** » Wed Dec 21, 2016 9:48 pm

ANT is a standard protocol for the way wireless data is transmitted. It's like AM radio: the frequency may be "870" but the strength of the radio station may be more or less strong. The number of digits shown in the wireless ID is about your display's capabilities. Screen shot from Cateye website attached.

: Screen Shot 2016-12-21 at 9.56.17 PM.png (79.78 KiB) Viewed 8262 times

The magnet-less ANT sensors will work with your Cateye, which is also ANT. You can buy magnet-less sensors from clevertraining.com (and likely other places as well); if you find they don't work you can return them for a refund. But I think they will work just fine.

Power numbers vary naturally, because your body can't put out purely constant power as you turn the crank, and road conditions (wind, speed, and hill slope) vary constantly.

If you set your PP to dynamic power smoothing your numbers will be easy to follow.

Sergioperi · Post by **Sergioperi** » Fri Dec 23, 2016 10:37 am

Good day,

I need feedback with my first ride to

I tagged @ridevelocomp in instagram's photo and somebody of your company said me that may be the PP is not correctly mounted because during the calibration it read a pending variation that fix the calibrtion after 8 minutes. I have attached photo of them, please let me know if it's in a wrong position.

I attach too Pics of the bike to can see the position on this, aero elements, etc... As you can see I used aero wheels. They are 55mm profile and 25mm width, with TUFO S33 tubulars 24mm with 7bars each one.

Here you are also the file of the first ride to check and give me some feedback of them

It's really an out and back ride (I started and finished in the same place) , but in the middle of the ride I climb and down twice to the same place, I don't know if this ride file is good to check the calibration.

Please let me know

Thanks a lot in advance.

Velocomp · Post by **Velocomp** » Fri Dec 23, 2016 3:05 pm

Everything looks quite good.

If you have your speed sensor on your rear wheel hub I would move it to the front wheel hub.

Sergioperi · Post by **Sergioperi** » Fri Dec 23, 2016 4:54 pm

Velocomp wrote:Everything looks quite good.

If you have your speed sensor on your rear wheel hub I would move it to the front wheel hub.

Thanks John!!

Would yo do other ride out and back to check calibration with isaac software?

Tomorrow I will ride with some friends, I will change the sensor to the front wheel, but my question is. What's the difference between put it on the front or rear wheel??

Thanks in advance

thomask · Post by **thomask** » Fri Dec 23, 2016 5:15 pm

Probably a more stable signal as the distance would be reduced.

Sergioperi · Post by **Sergioperi** » Fri Dec 23, 2016 5:17 pm

thomask wrote:Probably a more stable signal as the distance would be reduced.

Thanks for your answer!!

thomask · Post by **thomask** » Mon Dec 26, 2016 9:07 pm

Hi John,

According to Cateye tech support, the Garmin magnetless sensors do not work with Cateye computer. They said it will pair but you will experience issues with drops in speed and cadence data. So, I made some tweaks to my Cateye sensors...Basically, I moved the speed sensor much closer to the magnet (3mm) as recommended by Cateye. Also as suggested by Tom Gore, I set the calibration option from BEST to BETTER. And for some reason my PP was set to factory profile #3. So, I fine tuned it to my specs.

From the newest ride data after making these tweaks, I am seeing much better data (atleast from my perspective) than the one I posted before with regards to speed drops. Cadence drops to zero is because there were times during my ride I was coasting...I have attached the file for reference. Could you please send me your thoughts? Do you still see issues with my PP ride file? I would appreciate it very much!

Thank you for your time!
Ken

Velocomp · Post by **Velocomp** » Thu Dec 29, 2016 4:14 pm

I'm still seeing speed sensor dropouts in your PP signal.

I find it hard to believe that your Cateye won't work with a magnet-less speed sensor, particularly if it is located on the front wheel.

I would buy one from clevertraining.com and see if it works. If it does, great; if not, you can return it for a full refund.

thomask · Post by **thomask** » Thu Dec 29, 2016 4:31 pm

Many thanks, John.

Do I need to get the magnetless cadence sensor as well? Or can I use a combination of magnetless speed sensor and a magnet cadence sensor? Or should I get both magnetless?

Ken

Velocomp · Post by **Velocomp** » Thu Dec 29, 2016 5:32 pm

I would go for both sensors being magnet-less. They are much easier to maintain.

AeroPod, PowerPod and Newton

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