Gooserider said:
No personal experience, (I prefer bikes with motors) but you might consider looking at a "recumbent" style bike. I've been told by some of their owners that they are stronger than the traditional style bike, and that they are more efficient - less air drag and better physical positioning of the pedalling muscles, plus the backrest on the seat gives you a brace on the power strokes... Don't know how true it is, but there is a logic to their claims.
Gooserider
I'll second the recumbent bikes! However, with your size you also might want to look at a recumbent trike. They sit very low but will take a lot of load and are fun to ride...and fast....and super fast going downhill.
I bought my first recumbent bike (Bacchetta Giro 26) almost a year ago. I had looked at recumbents for many, many years and liked the looks of them and all that I had read about them. I have a terribly beat up body but do love to ride bike. Not real big time but have put on over 5,000 miles in a year.
I had not been able to ride for many years but kept trying every year. Last spring I told my wife I just had to get back on the bike and had to do something to make this swelling go down in my body! She said it was only fat, but... Also, riding my road bike hurt my wrists, elbows, shoulders and especially my back and neck. Yes, I'm a bit of a mess. So, I made up my mind to get a recumbent.
They say to ride as many as you can before choosing because there are so many different recumbents on the market. But finding these recumbents to try out is not easy. I was able to find two bike shops that handled some but they were a long ways off. Still, I went to both and tried what they had. I finally settled on the one I wanted but ended up having a bike shipped to our local bike shop and he set the bike up for me.
Wonderful! I am now able to ride bike again and not hurt like crazy. I'm even able to walk fine after a long ride. No more saddle sores either. Granted, I didn't put on a great mileage last summer (and can't ride here in winter) but did get 1600+ miles in. Also lost 25 lbs doing it.
Some have a problem the first time riding as it is so different riding them vs a regular bike. That causes a death grip on the handlebars and a not relaxed body. But once you relax you can ride just like a normal bike.
The only negatives about recumbents are that they are expensive and when you replace a chain, it takes a lot more chain. But believe me, the positives far outweigh the negatives.
btw, in June I will be part of the crew backing up John Schlitter who is riding a recumbent bike in the Race Across America.
RAAM John is the number one recumbent rider in the U.S. He will be riding a Bacchetta and hopes to cross the U.S. in less than 9 days.
One good site that talks about recumbents is (broken link removed)