Hi, I would like to get into cycling for fitness and was looking for some advice on what kind of bike to get. I'm a big guy 5'11" 320 pounds. I have done a little research and found a few bikes I like. I wanted to know if they are good enough for my weight? I will be riding on roads, dirt, and gravel trails. After I lose some weight I would like to try some rougher tails.
These are the bikes I have looked at.
http://www.cannondale.com/2012/bikes...-trail-6-20803
http://www.cannondale.com/2012/bikes...l-29er-5-20765
http://www.redlinebicycles.com/bikes/mtb/2012--ds1
http://www.redlinebicycles.com/bikes/mtb/2012--ds2
http://www.giant-bicycles.com/en-us/....1/9024/48881/
Thanks in advance for any help.