[QUOTE=
phughes - I understand what you are saying. the seat is as high as it can go. the guys at the shop say I need a bigger bike (19' instead of a 15'.) I can make it up this hill with my roommate's bike (17' schwinn hybrid) with everything I need for classes and clinics (it also has racks and fenders); it isn't easy for me, but I'm also not having to walk it. I asked about a variety of thing, including weight and build (WSD) but I guess asking about weight was a mistake and it sounds like the variations in configuration and size don't matter much. As I noted, one of the issues I am having is I can't stand on this bike to really slog up this hill (I can't stay balanced standing more than 2-3 rotations, even on flats, which seems to be a major difference.) I wish I hadn't mentioned weight...might have been easier for folks to make other suggestions on how to handle this hill and/or bike selection.

took the bike out to get groceries earlier, trying to figure out why I can't hack it. Maybe I'll try replacing the tires. just a bit concerned I might be tossing money out there that won't improve the ride[/QUOTE]

It may just be that the bike doesn't fit you well. That is a very good reason to get something else. If you can't get the seat to the height you need it you will lose efficiency. If the seat is setup properly for you then you can look elsewhere for the solution. A good fit will make a big difference as does geometry. I still wonder about the suspension. You may have a very good excuse to treat yourself to a new bike.

Hey don't worry about mentioning weight. You're hauling around a lot more than a lot of people do, it's something to be proud of. :-D

Best of luck!