Took a tumble on Jan 4th when the front wheel washed out. Bike goes right, I go left. It wouldn't have so bad except for that 4 foot drop off on the left side of the trail. Ride/walk the bike home about 1/2 mile. Kaiser urgent care takes x rays, and transfers to local ER. Cat scan shows 4 broken ribs and a partial collapsed left lung. Admitted to the hospital and on Monday a chest tube was installed. 5 days later the tube was pulled and I went. Nothing, not even my triple bypass has hurt as much as broken ribs. I only have 4 more weeks of fun.