I have a 1-3 resistance thing on the left and a 1-7 on the right. ("Thing" ha sorry I dont know what to call it) Putting it on 3 and 7 at the same time kills me when I go up hills, which might be a good thing. What do you all set your bikes on when you ride for a good cardiovascular exercise? I am trying to loose around 10 pounds and really tone my legs!

Ps. I dont do trails yet, and where I ride does not have many hills. It's a paved surface. Thanks!