My experiences over the last two years have been good, but not without issues...
I started riding around 3 1/2 month post op on each of my new hips.
It took about 5 months to venture onto the dirt.
The hardest part has been getting on and off the machine.
Around 6 months on the second hip I got into a tricky situation and had to push my motorcycle backwards, uphill, then turn it around in a narrow ravine. It's a big dual sport bike, close to 400 pounds. The strained joint hurt for days, I took several weeks off from strenuous activities and walked my way back into shape.
At 7 months on the first new hip I did a three day ride in Death Valley, something like 150 miles in the dirt, 450 on pavement.
At 8 months on the second hip I rode 1,400 miles in Baja, close to 400 in the dirt. Just got home last week.
I've wanted to ride around the world for three decades now. I'm beginning to think it may still be possible.