AeroPod, PowerPod and Newton

The two values are rider weight and total weight which is bike plus gear plus rider weight. Total weight is used in the power algorithm so it is the most important. Rider weight is only used for W/kg and for initial CdA estimate.
If you aren't doing what John said, you are doing it wrong

Steer tube mount?

My understanding of filters is that data doesn't have to be thrown away, for example speaker cabinets filter frequencies to the correct speaker size. I have no idea how their circuit is designed, but if I had to guess I would think there was some sort of filter on the analogue signal from the oscil...

If you want to use Newton for wind measurement you need to be hiking at more than 8 km/h otherwise it shows 0 wind. If you are adept at some electronics and programming you could try to build your own device using Arduino. All the sensors you want are readily available. Maybe someone has already des...

I thought the temperature adjustment only works on the Newton display but it still downloads the raw temperature to Isaac

You only need to do one cal ride per bike to get your wind scaling factor.
Then do a set of coast downs to get your CdA and Crr.
Cal rides don't determine Crr - they just work out your wind scaling factor and riding tilt. So no need to do one on a trail.

I would also guess, depending on bike tires, pressure etc and on short hills, the early change in tilt from nose down more weight forward until the barometric correction is worked in, would contribute something too (haven't worked out in my head quite what at the moment). That makes sense Russ. If ...

You should do the cal rides and coast downs on a good surface to get good baseline cdA and crr. That gave me cda of 4.5 and crr .0094 (Vittoria Randonneur Pro 26"x40) To get cda with full touring kit I watched my dynamic cdA when coasting downhill on a good surface and found it was about 5.6 wi...

The unpaved roads we used were generally not rough in terms of pot holes and the like but they had corrugations and various sized pieces of stone mixed in with the gravel so constant small vibrations were the order of the day. The attached photo is from a rail trail section and is pretty typical of ...

In case you aren't willing to try the experiment I found out just how tough the Newton is on my recent bike tour in the Australian high country when I came off my fully loaded touring bike on a remote dirt road. Newton was mounted on the new forward mount and took a hit. The mount was bent about 5 d...

Could be your tilt calibration is out. Look at the Hill readings next time in the first ten minutes. Chances are it thinks you are going downhill until it does its internal auto correction.

Been trying to make the purchase and pay with Paypal. But when it sends me back to the store for shipping details it says "checking out as guest" and wont let me use my email address because it's "already in use". :( So I tried again through Paypal and same problem. So then I use...

Looking at that it does look like a problem with your cadence sensor.
There are other more knowledgeable than I who could comment further

Please post your ride file.
If you were getting power readings it was not a problem with your cadence sensor

I wonder if this is related to a problem I sometimes encounter -but never as bad as this. Sometimes when Isaac matches up the GPS file to the iBike file it has points that go backwards in time. This seems to happens around stops. A hint as to a possible cause is in the graph that is displayed during...

I definitely didn't coast or brake on a 12 % incline ! Ahhh - so you are not yet a Jedi master :D I think ronpei is onto something. Sometimes under high effort you can move the cranks enough to take the cadence magnet out of range of the sensor, if its already near the limit. Or maybe you bumped th...

You need to post your ride file. All the graphs look a bit odd e.g. looks like you were coasting uphill some of the time

Not a biggie but I was trying to scale the wasted motion plot so that it would have the same scale Front-back and Left-right. The scaling of the plot works but the boxes showing 2W, 5W and 10W stayed the same size. Not sure if its just my setup but is it possible to make the default scaling on the t...

Don't forget to check for any difference in wheel circumference

It would be great if the RWS could be inserted with the green tab in place. That wee green tab can be awfully hard to find after you've taken it off to use the RWS

Why not just upgrade to Powerstroke?

You may need to clarify whether by "wind calibration" you mean the Wind Cal option in Newton setup or the Cal ride If you've done a proper Cal ride you should not be getting weird wind factors. That includes letting Newton settle to ambient temperature then do a Wind Cal in a sheltered loc...

The CdA in Newton is calculated based on your height, weight and position. Snapshot CdA can be affected by various factors: head/tail wind, road surface, your position on the bike, braking. But in theory the snapshot Cda should be close to the Cda you have set in the profile (calculated as you say ...

The CdA in Newton is calculated based on your height, weight and position. Snapshot CdA can be affected by various factors: head/tail wind, road surface, your position on the bike, braking. Basically, Newton works out how fast you should be coasting based on the calculated CdA then reports the CdA t...

Check your recording parameters on the Garmin. Are you using Smart recording which drops readings? Is zero averaging off? This causes the Garmin to ignore zero readings.
No need to calibrate the power meter. I never get that prompt although could be because I'm using an old Edge 705

If you set smoothing to 0:00:00 (at the top of the screen to the left of the "Show" button) you can see two spikes

Some things to check:
Positioning of your speed sensor and wheel magnet
Wheel size in your Newton
Speed sensor battery

Hope you weren't hurt falling into that sinkhole at 3.8mi or off the cliff at the end

When I moved my Newton to another bike/profile, I had to manually turn on Fast Rec on the second profile.
Then I got the HiDef files
Could be the same when you go into Trainer mode

Just got the Powerstroke upgrade and went for a ride. It promises many hours of geeky fun ahead :) Looking at the results in Isaac on the Front/back animated display I found it a little non-intuitive to understand because the amount of variation from ideal is shown radially rather than as front to b...