I am a newbie, I dont even own a bike I am borrowing a friend of the family's old Raleigh all aluminum road bike the downtube shifters were converted to STI and the left shifter does not work. I commute 12 miles a day to work and am torn between several bikes, Ibex xray, K2 Enemy, Kona JTS, but at any rate, I am in good shape, young(24), and an old guy on a Bianchi passed me on the trail on my way to work. He had the full get up, cycling clothes and clipless pedals, shifters that appeared to work, and I was able to keep up for a little bit but he was getting ahead of me. Would better gearing and clipless pedals made a big difference? Am I just weak?