I really need to get back into shape and used to run a little, but it hurts my knees so much. Is biking considered a good for a cardio workout?
Also, the only bike I have right now is a mountain bike I got years ago. I would think this would not be a good bike to have for excercising?? Can I get a decent bike for around $200-300?
Thanks
Edited for clarification: I have a mountain bike 10 speed right now, but am only going to be riding on cement sidewalks...
So, in short I am looking for a road bike.
Also, the only bike I have right now is a mountain bike I got years ago. I would think this would not be a good bike to have for excercising?? Can I get a decent bike for around $200-300?
Thanks
Edited for clarification: I have a mountain bike 10 speed right now, but am only going to be riding on cement sidewalks...