12 weeks out of my left TKR. Bought a new bike as motivation to return to the sport! I picked it up about 10 days ago and have been able to start riding. Need to build a lot of muscle back up on that leg, very weak. But I got 34 miles total in last week with rides 6, 12, and 16 miles in. Pretty slow deliberate pace but it felt great to be back doing it!