Originally Posted by revchuck

It was interesting seeing how the data came out with and without a power meter. The data was uploaded to Training Peaks.

Look Allez
Time: 1:59:22 1:58:41
Distance: 35.58 miles 35.59 miles
Speed: 17.9 mph 18.0 mph
Calories: 898 1187
TSS 98.0 115.9
IF .66 .77
Average HR 123 119

Tuesday was windier, which probably explains the higher HR. The other differences are pretty sizeable, even taking into account variables within the ride.