If the bike has brifters, I think it is quite possible that the epicondylitis could be related, especially if it is the R arm. It is the grip and twist that does it. Before I started splitting my time between DF and the recumbent, I developed first in the R and at the end of a year L elbow symptoms that gradually got worse. This was at the end of the 4th year of riding 8000mi per year on a DF. This cleared up after taking a few months off, (riding 2-300mi/mo instead of 500-1000mi/mo.) You would have to analyze your activities and rule out other causes: anything that involves a firm grip and a twisting motion in the forearm repetitively.