Hello, I am trying to quickly sort out which Nike would be best. I have a chronic heart condition and will need a heart transplant one day. I have a Madone but find it too hard to lean down, so I can't currently use it. I can't use any bike for long, maybe 10 - 15 minutes. It would be a sweet ride regardless. I need a fairly light weight, dependable bike, and upright. Have any of you ridden the Trek 7.4 WSD? If so, how do you like this bike? Do you recommend it? Do you think this bike or another one would best suit my needs. Don't want to spend more than $1,000.00 as it is secondary bike. Thanks for your help.