We put a speed sensor on my rear wheel today. Forty-six minutes of The Uphill Grind Spinervals DVD and I went 11.5 miles, average of 15 MPH.

Don't forget to take into account all the rest intervals and warm up and cool down that are in a spin class. During the actual sets I was averaging 17 - 18 mph - with a high of 37.8!

We put the sensor on to get an idea of my power output. There's a chart on Kurt Kinetic site you can use to convert speed to watts. We wanted to check it in a controlled environment. It's not a perfect match because there is more resistance when you're riding outside.


Veronica