and rather than just throw pot shots at this, here's a quick listing of max angle of attack for different lambda, where lambda is the ratio of rider speed to windspeed.

lambda = 2, max angle of attack = ~27 degrees
lambda = 3, max angle of attack = ~16 degrees
lambda = 4, max angle of attack = ~11 degrees

so for a rider traveling along a TT course at 40kmh with a windspeed of 10kmh, the absolute maximum angle of attack they will ever see is about eleven degrees and the frame airfoils will never stall. not even close. conversely, the rider will be constantly being pushed to the side except for that short moment that they are facing directly upwind and downwind. everything else is pure lift (i.e. a near constant side force, never stall)

along those lines, NACA 0015 or 0018 series airfoils (with an aspect ratio between 5.55-6.67) are pound for pound the best airfoils for upwind, downwind and crosswind performance. period.

(and yes, I develop wind turbines...)