What are the most accurate devices/sources to get my .GPX or .FIT file from?

Achieving the best results from Best Bike Split is dependent on having a quality .GPX Track or .FIT Activity file with accurate elevation data for our math and physics model.

• Garmin 1000
  

• Garmin 810
  

• Garmin 800
  

• Garmin 510
  

• GPS devices with barometric altimeter correction*
  

• Some Android Phones
  

  • Galaxy S3/4 have altimeter
    

  • Strava app does not use the altimeter for Android
    

*The Garmin 500 and 910xt can often collect accurate data, but have been shown to be prone to temperature drift and occasional drop outs.

• GPS Watches/ Bike Computers with no altimeter
  

• Phone Apps
  

• TrainingPeaks (FIT - from previously uploaded FIT files)
  

• Garmin Connect Activities (GPX/FIT - FIT is preferred)
  

• Check upload device for each activity
  

• Strava Activities (GPX - your own rides)
  

• Strava Activities (GPX -premium downloads)
  

  • Check upload device
    

  • Avoid activities made with iPhone/Android App
    

• RideWithGPS (GPX)
  

  • Courses can be created manually on RideWithGPS.com and then the resulting GPX Track file can be exported for use with Best Bike Split
    

  • Does not show the device used for upload
    

  • Check elevation data before upload
    

• MapMyRide
  

  • Heavily sampled lat/long data set
    

  • No elevation data provided
    

• Strava Route Creator
  

  • Heavily reduce lat/long data set
    

  • No elevation data provided