Tell that to my right knee....
I have a really bad right knee, bone to bone.
I had to shift to a regular bicycle and stationary bike for cardio. I can walk only about 1/2 mile.
In fact a cheap Trek saved my life.
And now it’s gone, but replaced with 3 others, one of which is Italian steel with all Campy gear.
But I miss that old, cheap Trek and wish I had kept it.