Thanks Kathi,

Great point. I did not think about tire pressure. I have Continental Sport 1000 tires, rated 70 to 120 psi; I keep them close to 120psi. I will play with the pressure. If others are interested, I found a chart reproduced from a magazine in another forum: http://www.bikeforums.net/showthread.php?t=90011 (look half way through for a chart entitled : "Ideal inflation based on load and tire size").

As for new wheels, I will hold off. I need to do a fair amount of research to understand the different options.

-Patricia