I’m using a Wahoo Roam paired with my Specialized Tero 5 TDU. I pair a Polar HRM to the Wahoo.  When a ride is completed, data is uploaded to Strava.  I don't understand what data is supplied by the Tero that ends up in Strava but reported Calories in Strava make no sense.... This weekend I rode 100 miles and Strava shows only 46 calories.  The same Wahoo and HRM on a 5-mile ride on my Cutthroat show 460 Calories....   

Can anyone explain how to get the Calorie data to be closer on the Tero described above?