The Sidi Laghee Sprinter road shoe puts a 12 out of 12 stiffness rating under every pedal stroke, so power moves straight from foot to crank instead of getting lost in flex. It's Sidi's stiffest sole to date, and the C-Boost SRS carbon plate holds its shape through a hard sprint or a long climbing effort. What Our Gearhead(R) Experts Are Saying:"I can loosen the Dyneema dial mid-climb without losing rhythm, then snap it back down for the sprint at the top. That kind of adjustment on the fly is what keeps my foot locked in exactly when the effort ramps up."