too fat to bicycle? 300 lbs?!

[lo123]

Next it sounds like we need to find you another LBS, one that can find you a proper bike fit. The answer to "can I put taller handlebars on my bike?" should never be "I don't know"

Agreed!

My LBS has been awesome in getting my bike set up and adjusted for me to accommodate my mobility problems due to pretty severe psoriatic arthritis. A good LBS will be able to find a solution!

I'd also look at recumbents... For my next bike, I'll definitely be looking at one just to see if it would better accommodate my 'issues'.

On the 'cross bike recommendation.. I love mine (specialized tricross). I threw on skinny tires to keep up with the faster folks on club rides, but I adore having the ability to go off road.