Hi,
I have the same bike Rich does. The bit of metal that goes out to the rear wheel is what we're discussing. make it shorter, and you get better acelleration at the cost of a harsher ride and a small chance of the rear wheel going over your head. Our bike is titanium, and that cushions the blow somewhat. Which brings me to the subject of today's sermon. I am a titanium convert, I am in my fifties; and want a bike that has a nice ride. Titanium bikes usually have a nice ride. A good example of the breed is the Litespeed Tuscany, if you can find one to test ride. The newer steel alloys are very nice, you should also try one of the new steel bikes while you're at it.