Frame flex of ti bikes is pure fantasy/placebo (at least on the vertical plane) on traditionnaly shaped frames. You would need enough force for the tires, whee

Frame flex of ti bikes is pure fantasy/placebo (at least on the vertical plane) on traditionnaly shaped frames. You would need enough force for the tires, wheels, saddle, handlebar, stem and seatposts to break/explose before the double triangle start flexing.