Thanks bcipam,

The info is very helpful. I may just go for the 50K like Val suggested. My hubby is half-interested also. I have my wrist in a splint right now. Turns out I have a bone spur at the base of my right thumb which is pinchuing a nerve (way better than having carpel tunnel which is what I was fearing). Breaking and shifting are a little tough but now that I know what it is, I'll just work through it. I really want to do the ride, so I will stay in touch.

Thanks for the info.
Nina