Hello Charon, look, as the song says, "I've been everywhere"
I can compute my speed in kmh, mph, fps, m/sec, knots and even weight and mach!
So, as long as I'm doing 35mph in a 50kmh area, I'm good.
As long as I'm doing 20m/sec in a 70kmh area, I'm OK.
When the bike is doing 30knots in a 35mph area, the going may be soggy but I'm legit.
Now, if I were to do a mere ton in a mach .5 area... now THAT would mean trouble !!!
Now... any help ? I'll be in the States as of late saturday evening and have some seriously scrumptious shopping to do !