If you don't want a new bike, get a rigid fork and smaller tires. I replace the suspension fork on my 7300 with a rigid and start riding 700*28 and I avg 2 or 3 mph more, but I have also gotten in better shape as well. My hybrid weighed 35 lbs at one time, I have it down to 28 now and I also have clipless pedals on it. Made a big difference in my pedaling an cadence.