Friday, September 11, 2009


The power graph from IM Canada. Power in Watts is on the right. Speed in kph is the blue graph and reads out on the left. Never mind the high power numbers, the meter was not calibrated. It appears the values are at least 50% too high. Values around 200-230 are more like it. I would expect the first 50 Km to hover around 220-230 based on previous experience -with a calibrated meter that is.

I rode 36.56 km or 22.72 miles in hour 1. Hour 2 was at 69.17 km or 42.98 miles. Hour 3 at 96.87 or 60.19 miles. Hour 4 was 126.78 or mile 78.78. Hour 5 at 153.71 or 95.51 miles (speed dropped to 19.1). The total bike was 5:49:50.

The altitude profile is in green. You can see Richter (the first climb) and Yellow Lake (the second one). You can also see KM 120 where special needs was. Both speed and power decrease over time and you can see that the drop on the "backside" of Richter is for real.

I calculated a moving average of power (the black line) to make the drop more obvious. You can also see some recovery on the Yellow Lake climb (after I ate). Power increases for a while as expected because the course climbs towards Yellow Lake. But overall power output stays below the initial segment.

Power drops to zero on the descents or when I stop pedaling.

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