I ride a bike once in awhile but because i am getting seriously overweight 50 lbs to be exact i'd like to buy a better bike and ride everyday . Due to hockey injury 1 year ago i have a lot of siactic nerve pain on and off in my right leg . I am affraid that riding a bike an hour or two a day will make it worse but maybe i'm wrong and it could help me . Any comments ?? I'm going to turn 55 this year . Thanks