I can guarantee you this: I'll go to the first training race of the year, and everyone will be lamenting how out of shape they are. They'll give me the typical sandbagging lines:
I haven't been training much.
I was sick for most of the winter.
I didn't start riding until March.
I've been working 80-hour weeks.
Yet, we can look at a Roadie and tell whether they're fit or not.
Here are some examples:
Tan lines on their face. ---> They spent a month in Florida.
They're thin. ---> Like we're not going to notice that?
My all time favorite telltale sign is to look at the skin over their Vastus Medialis muscle. If it's loose and kind of drooping down, then you KNOW they've been riding a lot.
What signs do YOU look for when trying to OUT a sandbagger?