Set the speed bug to V2, flex, though not displayed on the PFD, will still be active and displayed on the E/W display. Setting FLX/MCT on the rwy - no FMA will appear (prepare yourself, because it looks strange), 100kts just as usual, V1/Vr from the FMGC, pitch up to 15 degrees (just like the loss of airspeed memory item), at thrust reduction, pitch to 10, set speed to 250, thrust back to CLB, F/S speeds - appropriate actions...