I cannot recall ever being interested in how fast I could go.
Motorcycling has always been about getting around, with corners and varying surfaces being the fun bits. Roads built to go fast on have always seemed a bit boring.
I have done 100 mph without a helmet thinking it might spice things up. Picking my way down an unsealed road at a third of the speed is far more interesting.
there are old motorcyclists and bold motorcyclists
but you seldom meet an old, bold motorcyclist