There comes a time when every cyclist reaches into a jersey back pocket, extracts a pro-biotic hyper-nutrient choco-green exfoliant chia protein bar and instead of ripping away the wrapping like the savage carbo-craving road shark she is, she freezes. Tongue, stomach and heart revolt. A chilly voice in her head announces the rebel demands: We don’t want to eat an energy bar. Ever. Again. Last year, reflecting on the long PanMass Challenge ride she’d just finished, Jody said to me, “I am sick of f_______ energy bars! I can’t stand it! Next year I’m going to make my own.” Fortunately, she reconsidered. And that’s why you’re being treated to Bicycling Spring Rolls this week.