@Thomas_De_Kesel 0ne leg is very slightly shorter than the other (4/5mm) but at 64 years old I strongly suspect i’ve adapted to it. I’ve had bike fits over the years and am actually thinking about getting another. I don’t mind paying for a good fit but would object to paying for a poor one and my I’m a little sceptical about them as in my limited experience they all try to sell you stuff which they say is essential to the fit. I had the knee problem before I started cycling and it only really occurs when I start doing a load of walking/hiking. No pain whatsoever when cycling… My left leg could be stronger due to 40+ years of 30-40,000 miles a year in a manual car constantly depressing the clutch - who knows though