Snapdragon..you were a plethera of info...THANKS!
Back Surgery: It's prob. more my choice...it's just a constant twinge....after working out it gets worse, and only in my right hip and leg. My left leg is saying "what's the big deal...get over it right leg, i'm feeling no pain". The recovery time is quick. The neurosurgeon just goes in (microsurgery), shaves the bone that the nerve is being pressed up against and and relieves the pressure. Wa La. It's an outpatient thing. He said i can resume training right away (!).
I am feeling so much stronger training but have this annoying pain that keeps my left side thinking that it's overworked...NOT!

Spin class is going great. The first one i took 4 weeks ago was tough and yesterday I almost stayed for the second class. I'm loving it as i get stronger adn stronger.

I wrote down the tire info. Thanks!!!!

and as for hills. I HATE HILLS. Guess i better get over that, huh?
My game plan is to add a "hills" day to my routine when the weather gets nice. Our house is sorounded by hills and i'll just make a course of hills around our neighborhood. (My neighbors will think i've totally lost it).
Joining a local bike club is also on my "List-O-Things-To-Do".

Time to take the doggies for their walk!
Thanks again! : ))))