Appropriate bike for large rider w/ disk injury
This is my first post on the site. I suffered a herniation of L4-L5 and L5-S1 while deployed to Iraq last year. Now I am a out of the service but I have a low back issue that causes constant pain and will not allow me to engage in the activities which used to keep me healthy. Running is impossible and a short mountain bike ride puts me flat on my back for days.
I live in the Sacramento area where there is no offseason and my house is next to unlimited miles of bike trails. Can anyone suggest a bicycle that will allow me to exercise without exacerbating this debilitating injury? I am a big rider, 6'5", 240, and otherwise in great cardiovascular condition.
Thank you for your suggestions.