I'm new to Bike forums and biking in general. I purchased a mountain bike last year (specialized roadhopper) and spent some of last year and all of this spring & early summer on the trails in Illinois. I did a few organized rides and soon realized I was the only one on a mountain bike so considering the fact that I had been putting in about 150 mi. a week I just purchased a felt F4C. This past week I've been experiencing a great deal of pain on the outside of my right knee right on the epicondyle. Since I never experienced this on my mountain bike is this a fit problem & if so what suggestions do any of you have?

thanks