How fast do you normally cycle? I just started cycling about 2 weeks ago. I have an old 1970's 10-speed and I don't feel like I'm going as fast as I should be going on a "road" bike. I'm usually around 13 mph on average (according to my computer). This usually breaks down to 15-17mph with a tail wind and 12mph with a headwind.
Am I just a fred? I think I need a new bike.