The Recoil ESX iron shaft is an evolution of the Recoil 450/460 models.Recoil ESX irons are designed to provide maximum control and distance for all golfers through the latest in design and materials.Recoil Technology provides greater consistency, distance and trajectory controlRecoil Technology provides optimal spring effect in the walls of the shaft and more efficient energy transfer to the ball for increased velocity and greater distance.ESX = Enhanced Stability for more control and feelStiffer mid and butt produces better shot controlSofter tip improves feel and trajectoryLower torque for improved shot dispersionIon Plating (IP) creates a stunning and premium finish vs. traditional paintThe raw shaft is put into a vacuum chamber where metal ions are emitted and bond to the shaft.The process takes extra time and is more expensive than traditional methods.This extra step is all done in-house, so we are able to ensure tighter control for the best quality.Recoil- It's more than a reaction. It's a revolution.スペックDescriptionFlexWeightTorque (deg)LaunchButt ODTip ODTip ParallelLengthRecoil 440 ESX F0LL48g4.8°High0.600"0.370"5.5"40"Recoil 450 ESX F1L52g4.2°High0.600"0.370"5.5"40"Recoil 460 ESX F2A59g4.8High0.600"0.370"5.5"41"Recoil 460 ESX F3R64g4.7High0.600"0.370"5.5"41"Recoil 460 ESX F4S67g4.6High0.600"0.370"5.5"41"