Bike CdaCrr 1.4.5

4.72 MB

Publisher Description

Bike computer to improve your bike racing position and select better equipment, by measuring CdA (drag*area) and Crr (rolling resistance) coefficients.

a phone with built-in ANT+ support and ANT+ sensors for power and speed. PowerTap, Power2Max, Quark, and SRM powermeters (plus ANT+ speed sensor for the last ones) are currently supported.
Read the help to quickly see how to use it:
For support, send mail at
Current features:
-Classic lap mode (default, click each lap) where it is possible to:
-Measure Crr on ridden laps at slow speed ( 30kmh)
-Model uses air density accurately computed with weather station data and detected sensors
-Possible to hear/record voice message each lap
-Several CSV files are stored on the device and can be sent by mail (one for the ride, one for the laps/segments)
-Possible to activate cloud storage to list/edit previous runs later
-Possible to plot virtual vs real elevation (barometer needed)
-Configurable field to switch between different fields (altitude, cadence, bike direction,...)
-Averaging power on a lap or smoothing it over a duration
-Measure road vibration with phone accelerometer
-ANT+ devices Id are stored and searched preferably
Several checks are done to discard some laps because of bad data:
-Detect data drops (ANT+ events not received)
-Detect zero cadence from a crank based PM
-Detect ANT+ sensor battery status
This version is free, but additional features are possible by switching to the premium version:
Premium features:
-Defined lap length mode (for velodrome, click once to start the run) + two wind models (beta)
-Automatic segment mode (needs barometer) to record CdA during a ride (given periodically with 2 digits) which starts each time the minimal speed is reached
-Support Garmin tempe sensor to record local temperature
-Possible to use Bluetooth headset to hear/record voice messages
Download the key for the premium version here
Known bugs:

Bike CdaCrr is a free software application from the Health & Nutrition subcategory, part of the Home & Hobby category. The app is currently available in English and it was last updated on 2016-08-02. The program can be installed on Android.

Bike CdaCrr (version 1.4.5) has a file size of 4.72 MB and is available for download from our website. Just click the green Download button above to start. Until now the program was downloaded 1 times. We already checked that the download link to be safe, however for your own protection we recommend that you scan the downloaded software with your antivirus.

Program Details


Publisher bugno
Released Date 2016-08-02
Languages English


Category Home & Hobby
Subcategory Health & Nutrition

System requirements

Operating systems android

Download information

File size 4.72 MB
Total downloads 1


License model Free
Price N/A

Version History

Here you can find the changelog of Bike CdaCrr since it was posted on our website on 2016-10-08. The latest version is 1.4.5 and it was updated on on 2017-07-13. See below the changes in each version:

version 1.4.5

posted on 2016-08-02

New in 1.4.5:,-(beta) Time trial mode: CdA between auto-start and a click at the finish line,-Fix crash for Android 6.0 when activating GPS,1.4.4:,-Wrong CdA when selecting "automatic segment mode" from main screen,1.4.3:,-Crash fixed after Powermeter detection,-Configurable fields (long click) indicated by a *,-Smooth/average option on power field,-Switching mode possible from main screen,-GPS may be activated in the settings,-iBike.csv file added to store more infos,-Road vibration measured

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Users Rating:  
  5.0/5     1
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Downloads last week: 0
Release Date: 2016-08-02
Publisher: bugno
Operating System: android
Type: Free