I had both hips replaced 11 years ago - a medical miracle if there ever was one! I started cycling seriously three years ago, so can't compare what it was like before. I've had a fit from a reputable bike shop (Fit Squared) and the fitter pooh-poohed the artificial hip question. "Shouldn't make a difference." He's an exercise physiologist so should know. But it's so strange. My husband (a skinny dude)can ride twice as far as I and never have to stand up to give his sit bones a rest; I feel as though the ends of my sitbones are wedges pointing out of my skin after about 20 miles. I found a great saddle in the Specialized Lithia that ended the numbness in the lady bits, and it's a gel so should be helping, but even after a season of riding at least 50-70 miles a week, those sit bones still ache. Once I'm off the saddle, I feel fine - no chafing and no residual discomfort. So my question is: are there any women here who rode before hip replacement as well as after? Did you find a fit or gait difference? What was your experience? I'm going to get another fit in two weeks and would like to hear some experiences. Thanks!!