Getting the bicycle ready for after surgery

My DS surgery is this Thursday and I have been getting the Bicycle ready for after recovery and clearance from the Dr.  Anyone have an idea of how long after surgery before the Dr. will let me ride outdoors??  This is my main plan for cardio as I have knee issues and Orthopedic doesn't want me walking too much. 

Every doctor is different.  Mine didn't have any restriction on my cardio exercise.  The only restrictions were weight lifting type exercises.   He said 6 weeks for weight lifting, but cleared me after 4.  Truthfully I didn't feel like doing much but walking after the surgery, but the more of that I did, the faster my recovery happened.

Not sure how big your stomach is, but it might be uncomfortable sitting and having your knees coming up and moving your stomach around or even hitting your stomach.  I know that even now with the weight loss, all the extra skin I have gets in my way when I'm cycling, especially when trying to go fast.

Good luck and have fun on the bike!