Took a guy out for a ride that is an avid spin class Guru. Sized him up on my UNIVEGA and off we went. Nice little route that was mostly down hill fast and slow. On the way back from the river he said lets go for it... Ha
I squashed him like a bug!
But honestly if he knew how to use Friction Shifters and Rat Traps it would not have happened. Still... It was a nice feeling...
As to the OP: Remember when taking a class with instuctress'es in tight clothing, Sunglasses can keep ya off the dirty old man list... Stud...
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No matter where you're at... There you are... Δf:=f(1/2)-f(-1/2)