Just wondering, I would like to be able to play with the big boys next year, ok, just the guys on the cycling club and in the triathlon program at my gym. Talking to them about their group rides, I wonder if I could cut it - they talk about guys straggling and being left behind at 17-18 mph average. I was proud of myself for being able to do sustained 15-16 on my hybrid, 700x35c tires with a fairly shallow tread. So, is it the rider or the bike? If I switched today to a road bike, could I expect to pick up a few extra MPH's just due to the technology/design? Or, do I need to go back to the beginning and train harder or differently?