I have been ribbed a little but nipped it in the bud.
One fat assed co-worker 1/2 my age was flipping me poo in front of a bunch of the peanut gallery and I mentioned to him that I have another bike he could use and I would love to go for a nice 30 mile ride with him the next day.

It actually makes me very sad that a lot of the young people I work with are 1/2 (or even a 1/3 ) my age and are so out of shape they couldn't ride 14 miles if you put a gun to their head.