It’s the time of year to set yourself an ambitious target for next season. Ben is going for a sub 50min 25 mile time trial. By using myWindsock.com he discovers the off season training goals he needs to break the 50 minute barrier.
Select your local time trial course here Time Trial Courses and discover the improvements you need to make this off season.
It’s been a while since we have updated you on the latest service improvements. You may have noticed these changes and are already taking advantage of them. Here is a run down of the latest features.
Ride Insights
A brand new feature is the Ride Insights tab. From this tab you will find interesting information that our system has discovered about your ride. For example Premium members may find insights to the wattage cost of the headwind up the local climb. Or perhaps how the average speed will change during the ride. Other things you will find in here are actionable suggestions and news.
Data Tab Menu and Auto Selections
Locating the most interesting and important sections of a forecast is something we wanted improve. Key areas of most rides come down to the climbs and headwinds. So we decided that we would automatically find these for you for quicker analysis. You can find these section in the Data Tab Menu. Also within this menu you can find your created Intervals.
Summary data and charts within the tab reflect the selection you made from the Data Tab Menu.
New Chart Menu System
As the Data Tab Menu controls the zoom level of the charts you are viewing we decided that it would be more intuitive to move the Chart menu within the data tab. Click on the current chart title to view more charts.
Interval Parameter Toggle
Some intervals you want to change just the Power or the CdA and keep everything else as default. This is why we made the parameters you can set on an interval optional. When a parameter is active the Virtual Rider will follow the interval’s setting however when unchecked the parameter will follow the default Virtual Riders rules. This provides you with much greater flexibility when experimenting.
For example you may be happy with the power rules set in your Virtual Riders settings however you may want to see what the cost of relaxing your position would have during an interval. Uncheck the Power checkbox to keep the default power rules during the interval.
These are major changes we have recently made. We hope you will have fun using them.
Massive upgrades to report! The new Strava Segment Filter which help you locate key Strava Segments; customise Watts for Segment efforts on Routes; layout improvements for larger screens; and we now auto offset your Wind Lines for improved clarity. Here are the latest updates in more detail.
Segment Filter
This is a huge upgrade that we are really excited about using. Find the Strava Segments you are most interested in with the new Segment Filter. Available on Routes and Activities, you can now filter Segments based on their calculated..
wWatts% – Premium members can find the most favourable or least favourable segments.
Distance
Time to Complete Segment
Average Watts
Average Speed
Gradient
myWindsock Segment Filter helps you find the most interesting Strava Segments.
High resolution format
Things were getting a little over crowded with the Point Popup covering the charts, map and data. This isn’t necessary for larger screen sizes so for Tablets, Laptops and other devices with larger screen areas. So on these devices you will now notice that the Point Popup is a Point Sidebar and now lives next to the Map and Data areas.
Point Popup is now a Point Sidebar for larger screens.
Customise Watts and CdA for Strava Segments Efforts
We’ve made it easier to create a custom power plan for your next Route. There is now a Create Interval button when you select a Strava Segment on your Route. Click ‘Create Interval’ to set the Watts and CdA for your Segment effort. Set your target power for your planned Segment efforts for improved pre ride reconnaissance.
Easily customise power by clicking Create Interval on any Strava Segment.
Auto offset of Wind Lines
Your Strava Routes and Activities now have a small offset applied to the Wind Lines. This is to help distinguish the Wind Line colours on roads that you ride in both directions.
Wind Lines are now automatically offset to improve visibility.
Bonus upgrade: Course settings are retained from session to session
We were getting frustrated at having to reset our course settings every time we viewed a course forecast. So they are now saved. If you set Offset, Wind Shear or any other course setting you do not have to set it again on your next visit.
We have been improving how we display Segment information to you on your Strava Activities and Routes. Now clicking on a Segment will reveal the segment myWindsock WindLine and summary information. Charts are also zoomed in to the selected Strava Segment.
View Segments directly on Activities and Routes.
Watch your segment effort
Clicking the Watch button will step you through your effort displaying the prevaillng wind, power, speed and lots more data.
We hope you like this upgrade. We have lots more coming soon!
More features this week. Sit back and relax while viewing the twists and turns of your forecast with Point Player; report and bewarned of hazards on your routes with the Community hazard system and more.
Community Hazard system – this is a big update that we hope you will find useful. It is still being refined so please let us know your thoughts about this new feature either on Facebook or contact us. The idea is that we can share hazards such as potholes on the roads that we ride. Click on any point on your course to reveal the Point Info popup and click the Point Hazard tab to make your Hazard report. You can up vote and down vote hazards by others which will help keep the relevance of hazards high.
Charts and Data location – On all devices including mobile, desktop and tablet the lower panel which shows charts and overview data, has new options. It has always been possible on desktop to resize the panel however you now have the option on all devices to completely hide show at 1/3rd and 2/3rds height.
Point Player – It is now possible to sit back and view the twists and turns of your forecast, viewing how your ride develops point by point. This is a Premium feature.
I have some big leaps in functionality for you this week. Including the new Point Info popup that gives you a point by point view of the forecasted conditions and your past performances. Plus a new Chart showing when and how much you braked, plus the option to remove braking points from your CdA calculation.
New Point Info Popup – Tapping/clicking any part of your course will activate the Point Info popup. This gives you lots of information for the specific point on the course that you have clicked. Once activate you can move your cursor around the course and view how the conditions and metrics change. The ‘Wind Window’ demonstrates the prevailing wind direction.
Remove Braking from Loops Mode CdA Calculation. I have enabled this option as default as I believe in most cases it will give the closest approximation of CdA for general riding including time trialing and other forms of racing. I also believe this will actually lead to the retirement of Dirty Mode as an option. I recommend for field testing that the option is deselected as it is useful to isolate your loops that have braking within them so as to provide a clear picture of good loops vs bad loops.
New ‘Detected Braking Points’ Chart. The process of identifying and removing braking from CdA testing has revealed new data that could be useful. Useful if not only to view the success of the Loop mode identifying your known braking points.
Braking Points added to CdA Profile chart. This will help you view which of your loops are possibly affected by braking.
Map Marker Linked with Charts. Moving your cursor around the chart will also show a marker on the map and update the Point Info popup if activated.
Crosshairs on Charts. Charts have greater visual precision with crosshairs coupling time and data.
New ‘Rolling Average Power’ chart. Shows how your average power is progressing during your ride. Usage is similar to that of the Rolling Average Speed.
Leaderboard Bug Fix. Fixed a bug with the Leaderboard Wind Rose where an error would be triggered if Wind Rose hadn’t completed loading when Leaderboard Tabs clicked.
This is a common one and usually simply resolved or explained. These are the possibilities
You are using ‘Loop’ mode.
‘Loop’ mode requires minimal braking to be a true calculation of your CdA. For general riding ‘Dirty’ mode is more suitable as this attempts to filter out braking and anomalies.
Your Performance Profile has errors in it. As part of the CdA calculation weight and rolling resistance are important. If these parameters are far from their true values your CdA will be incorrection. Check that you have entered in your combined weight with bike, clothing etc. CdA calculations are especially sensitivie to incorrect weight inputs for hilly rides.
You dragged your brakes down hills. This is very difficult to separate from non braking data as there isn’t a large enough difference to create outliers to filter. Especially when there are long descents.
Your brakes were dragging on the rim.
You didn’t calibrate your power meter or it received a bad auto calibration during your ride.
You were wearing unusually baggy clothing such as a rain coat.
No CdA displayed for my ride
If you don’t upload power data to Strava we can not calculate your CdA. If you want to protect your power data. Try uploading the TCX file directly to myWindsock.
Ensure your are still in Analytics mode. Go to > Mode
Some of my test Loops are missing
When doing field testing ensure you have the highest position recording setting on your bike computer. For Garmin devices this is ‘GPS + GLONASS’.
Experiment with the detection sensitivity. Lowering the Loop Tolerance will detect more loops but be increasingly less accurate.
> Aero > Loop Tolerance
My CdA is very different from my previous rides
If weight, rolling resistance or drive train loss parameters are changed your CdA will also be different. Keep an Aero test profile that keeps this values the same to help compare CdA from ride to ride.
Incorrectly calibrated power meter.
Only a small section of my out and back Time Trial has been measured.
Expand the minimum loop distance to capture a greater proportion of your time trial. > Aero > Minimum Loop Distance
Find each stage of the Santos Tour Down Under preloaded for easy access. Each stage has a full forecast giving you a powerful insight into the action.
What to look for
Echelons. Purple wind lines when the winds are strong offer the potential for echelons to be formed.
The heat. 30 plus degrees centigrade temperatures will affect some riders more than others.
Headwinds. Headwinds will always favour the Peloton. The aerodynamic advantage is too great when the winds are strong for breaks to succeed. Smaller riders are more likely to suffer greater during headwind sections than the larger riders.
Tailwinds. A tailwind may provide the launch platform for a winning break. The reduced wind speed reduces the aerodynamic advantage that the peloton has.
View the weather for each Santos Tour Down Under stage here.
During the Winter months your may notice that your wWatts (weather watts) are higher than those you have been seen in the Summer. The main reason for this is Air Density. Colder temperatures bring us higher Air Densities, which means greater air resistance.
What is Air Density?
Air Density is the mass of air in the atmosphere measured in kg/m^3. As the mass of air increases so does the resistance we experience when traveling through it. Here’s an interesting video demonstrating the affects of temperature on Air Density.
Why does this affect wWatts?
We anchor the wWatts metric to an average air density. So as above average Air Densities are experienced when it is cold in the Winter the resistance and therefore Watts required to achieve the same speed.
Low Air Density also explains why PBs are often achieved on warm humid days at the Summer.