Search found 1324 matches

by racerfern
Mon Jun 09, 2014 4:25 pm
Forum: Isaac software
Topic: change profile after ride
Replies: 7
Views: 5995

Re: change profile after ride

You're right, it doesn't change the weight and I'm not sure that it should. A difference of less than 5 pounds is insignificant over the course of an average ride and a difference of 10 or 15 pounds is significant enough that you should do another cal ride. The purpose of changing profile after the ...
by racerfern
Mon Jun 09, 2014 4:15 pm
Forum: Isaac software
Topic: out of saddle algorithm?
Replies: 3
Views: 3605

Re: out of saddle algorithm?

Actually, that's a good thing. By coincidence the same happens with me. Newton reads the amount of side to side motion and that determines where something is declared out of saddle. If you hold your bike nice and steady, you will tend to see less out of saddle as analyzed by Newton. That's good beca...
by racerfern
Wed May 28, 2014 8:32 pm
Forum: General Discussion
Topic: Crit Racing with the iBike
Replies: 2
Views: 3336

Re: Crit Racing with the iBike

I am thoroughly impressed! By taking advantage of the wind display you don't have to worry about chasing wildly fluctuating power numbers. Just stay in the pack and break out only when you absolutely have to.

Also, lots of wasted watts!
by racerfern
Tue Apr 01, 2014 1:01 pm
Forum: Newton Setup
Topic: Speed and Distance way off from Garmin
Replies: 10
Views: 8154

Re: Speed and Distance way off from Garmin

But is the wheel magnet within one coin thickness away from the sensor. Not left to right but actually spaced away. It appears to be a lot further in the photo.
by racerfern
Thu Mar 27, 2014 12:08 am
Forum: Newton Setup
Topic: Wind Callibration
Replies: 11
Views: 7899

Re: Wind Callibration

Hey Julian, There are actually two "wind" settings. 1) Wind scaling: Is the average wind between riding into a headwind and riding along in the same wind but as a tailwind. Obviously the wind has to "flow" around your body in both directions. Wind scaling is established on a cal ...
by racerfern
Tue Mar 25, 2014 11:58 am
Forum: Training with Power
Topic: Normal Power NP
Replies: 6
Views: 13376

Re: Normal Power NP

http://www.endurancecorner.com/wko_definitions Two hours at 50% is substantially less effort than one hour at 100%. IIRC one hour at 50% is only 25TSS or 33TSS (sorry, I'm trying to recall from memory) points where as one hour at 100% is 100TSS. So at 50% it's going to take either three or four hour...
by racerfern
Mon Mar 24, 2014 12:18 am
Forum: Newton Technical Support
Topic: Cda Questions
Replies: 19
Views: 15531

Re: Cda Questions

@JulianBolter: Please post ride files, it helps to make sense of it all. That said, be careful under what conditions you take snapshot CdA. I'm used to seeing .37-.38 under relatively calm wind conditions. I don't see how you can get a snapshot CdA into a 10mph headwind unless there's a significant ...
by racerfern
Mon Mar 17, 2014 8:39 pm
Forum: Newton Technical Support
Topic: Newton Elevation
Replies: 4
Views: 4503

Re: Newton Elevation

There is no need to analyze tilt plot since the newer units are all auto correcting. As I suggested, enter your starting and ending elevation, uncheck all other boxes and move on.

Your slight variations are really meaningless numbers when you talk about .6w or 2w.
by racerfern
Sun Mar 16, 2014 9:28 pm
Forum: Newton Technical Support
Topic: Newton Elevation
Replies: 4
Views: 4503

Re: Newton Elevation

A rising elevation indicates a falling barometer and vice versa. It depends on your locale and the time of day you tend to ride. If you switch to "set elevation" then Isaac will correct for the slight difference. Know that anytime the the elevation trend is upward, your average wattage wil...
by racerfern
Sun Mar 16, 2014 9:24 pm
Forum: Newton Technical Support
Topic: incorrect temperature reading
Replies: 6
Views: 5223

Re: incorrect temperature reading

As a curiosity I switched from fahrenheit to celsius and put my unit in the freezer. It went to -15C as I expected. Where I live right now, there's no chance of seeing anything below 10C so I don't know what to say. Have you seen this on other rides? Is this a one time hiccup?
by racerfern
Wed Mar 12, 2014 12:47 pm
Forum: Newton General Questions
Topic: Feature request
Replies: 4
Views: 4228

Re: Feature request

Normalized power generally doesn't work well for intervals, especially less than 10 minutes. It takes a fair amount of time to get settled in and is easily skewed on short periods. For a long ride it's a great metric that gives a good idea of effort. I think you're better off with AP and do your bes...
by racerfern
Sun Feb 09, 2014 8:18 pm
Forum: Newton Technical Support
Topic: Newton Max Power
Replies: 5
Views: 5216

Re: Newton Max Power

AFA #1, wind is a constant varying force that will almost never equal zero for an out/back ride especially when not under controlled conditions. My "average" ride almost always has about -1.2mph avg wind because of all the traffic whizzing by. At first I wondered if my profile was off so I...
by racerfern
Sun Feb 09, 2014 12:32 am
Forum: Newton Setup
Topic: Garmin and Newton/Isaac different power readings
Replies: 6
Views: 6154

Re: Garmin and Newton/Isaac different power readings

You had us all worried as we were digging deep within our resources to figure out what was going on. Who woulda thunk it was a typo, 308 vs. 208. Sheez, wouldn't I love that kind of typo.
by racerfern
Sat Feb 08, 2014 5:09 pm
Forum: Newton Setup
Topic: Garmin and Newton/Isaac different power readings
Replies: 6
Views: 6154

Re: Garmin and Newton/Isaac different power readings

Check your zero recording option on the Garmin. It affects both power and cadence averages. Note that the non-zero average which is what it appears you have, will approximately equal NP on the Newton. It could be higher or lower but will generally be in the range of NP not AP. BTW, if your NP is sub...
by racerfern
Wed Feb 05, 2014 11:30 pm
Forum: Newton Technical Support
Topic: Newton Max Power
Replies: 5
Views: 5216

Re: Newton Max Power

Bullet points: 1) Never "Switch Profile After the Ride" unless you happen to be on a completely different profile by mistake. The slight nuances will never give you the exact numbers...really close but not EXACT. 2) Regardless of your smoothing settings the stats window will not display di...
by racerfern
Sat Jan 11, 2014 12:02 am
Forum: Newton Setup
Topic: Date wrong every ride
Replies: 5
Views: 4905

Re: Date wrong every ride

What date does the unit show when setting date and time?
by racerfern
Wed Jan 08, 2014 11:50 pm
Forum: iBike Features
Topic: Metrics Comparison
Replies: 2
Views: 8595

Re: Metrics Comparison

There are lots of software choices for tracking NP and TSS. However, using a spreadsheet designed for that purpose works really well. I've posted this spreadsheet previously but here it is in Excel 2010 format. Just change the first date cell to your desired date and start logging TSS. Note, that th...
by racerfern
Wed Jan 08, 2014 11:39 am
Forum: Triathlon and TT Topics
Topic: Velodrome and aero testing
Replies: 3
Views: 10015

Re: Velodrome and aero testing

Most velodromes require track bikes, are you doing a TT setup or a road bike setup? IF you have a stretch of uninterrupted road AND the wind is constant you could do a series of runs in different positions and/or different gear. Do runs at 20mph for example (flying starts and finishes) so the elapse...
by racerfern
Sun Jan 05, 2014 10:01 pm
Forum: Triathlon and TT Topics
Topic: Velodrome and aero testing
Replies: 3
Views: 10015

Re: Velodrome and aero testing

There's been a few discussions and a couple of attempts. A friend of mine tried it on an outdoor velodrome and got "reasonable" results over the course of a lap and several laps. There are lots of issues, from banking to wind. FWIW, the centrifugal forces do skew things but it does average...
by racerfern
Thu Jan 02, 2014 11:58 pm
Forum: Isaac software
Topic: Isaac feature request
Replies: 23
Views: 16089

Re: Isaac feature request

Russ has a good idea and this could be the main section of your ride minus warm up and cool down but not necessarily a given "lap" The problem with creating a new lap is that you might affect the existing laps you have. Perhaps a combination of a few other implementations: 1) When highligh...
by racerfern
Thu Dec 26, 2013 11:21 pm
Forum: PowerStroke
Topic: Powerstroke and rollers
Replies: 9
Views: 10692

Re: Powerstroke and rollers

You should turn trainer mode on as the wind is crazy low and so are the watts. You can fix this to a certain extent by clicking tools > repair > blocked wind sensor. However as you can see, even though your cadence is steady, your watts are varying because of the undulations of the bike. Basically t...
by racerfern
Thu Dec 19, 2013 6:10 pm
Forum: iBike Dash 2012
Topic: send POWERHOUSE TRAINER ride to STRAVA
Replies: 2
Views: 15432

Re: send POWERHOUSE TRAINER ride to STRAVA

Strava does not require GPS data as you can declare the ride a "trainer" ride.

It may be that GPS data was recorded but since you were on a trainer it's just the bouncing around because of a poor GPS signal inside. Try shutting off the GPS data on your next trainer ride, that may solve it.
by racerfern
Tue Nov 26, 2013 10:34 am
Forum: Frequently Asked Questions
Topic: How to open an iBike Newton +?
Replies: 3
Views: 9598

Re: How to open an iBike Newton +?

Tom is right, do not open it!!! It is a non-serviceable unit that you will end up breaking. I guarantee it.

Contact support and make arrangements to return it.
by racerfern
Mon Nov 04, 2013 3:03 pm
Forum: iBike Features
Topic: displaying average and actual watts whilst riding
Replies: 4
Views: 10172

Re: displaying average and actual watts whilst riding

You can enable interval mode on your iBike by pressing and holding the right arrow. Then you'll have actual power in the middle screen and avg watts in the top screen. However, you won't be able to look at other info screens while in this mode. This is particularly helpful when doing intervals at a ...
by racerfern
Sun Nov 03, 2013 11:19 am
Forum: GPS Tracker for AeroPod, PowerPod and Newton
Topic: It's here: GPS for your Newton!
Replies: 30
Views: 69776

Re: It's here: GPS for your Newton!

No issues at all. I've also run Newton Tracker with Glympse and My Tracks without issues.
by racerfern
Fri Oct 25, 2013 11:15 pm
Forum: iBike Features
Topic: HIGH OUTPUTS WHEN WIND
Replies: 13
Views: 16706

Re: HIGH OUTPUTS WHEN WIND

I don't normally try to drill into short rides because there are many variables that can skew the numbers. But your cal ride is interesting in that the first 2.5km has wind about 4-5km headwind. The return leg has very little tailwind then it suddenly jumps to a very large tailwind before settling d...
by racerfern
Fri Oct 25, 2013 8:45 am
Forum: iBike Features
Topic: HIGH OUTPUTS WHEN WIND
Replies: 13
Views: 16706

Re: HIGH OUTPUTS WHEN WIND

Please upload the original cal ride and if you did an out back after the cal ride then upload that also.
by racerfern
Thu Oct 24, 2013 10:43 pm
Forum: iBike Features
Topic: HIGH OUTPUTS WHEN WIND
Replies: 13
Views: 16706

Re: HIGH OUTPUTS WHEN WIND

I am not so sure that coast downs will help. Perhaps raise your wind scaling slightly, this is something that generally does not affect climbing. I mean SLIGHTLY!
by racerfern
Sun Oct 20, 2013 1:24 pm
Forum: iBike Features
Topic: HIGH OUTPUTS WHEN WIND
Replies: 13
Views: 16706

Re: HIGH OUTPUTS WHEN WIND

Understood, but in the meantime just switch to you original profile. Although the mount may have been loose and that affected wattage it seems the wind scaling of that profile is spot on.
by racerfern
Sun Oct 20, 2013 11:27 am
Forum: iBike Features
Topic: HIGH OUTPUTS WHEN WIND
Replies: 13
Views: 16706

Re: HIGH OUTPUTS WHEN WIND

I realize you had an issue with a loose mount recently and maybe that's why you did another cal ride. However not too long ago you did an FTP test and the profile from that test was with a wind scaling of 1.144. The FTP test you did today has a wind scaling of 2.060! Something went wrong on this rec...