I started cycling this past spring. I have increased my monthly mileage from 92 in April to 200 in August. In an effort to get fitter & hopefully a little faster is it better to monitor my MPH or Cadence? I found that when I concentrated on keeping my cadence in the mid to high 80s it took a little more effort & felt like a more consistent effort also. I should add that my bike is a Giant Cypress Dx so I realize speed is secondary. Thank you for any input. This 55+ forum is very informative