Ceepo designed the Katana with the same geometry as their Viper, but they skewed the design for stiffness and low weight rather than putting the priority on comfort and aerodynamics. They know that some courses are extremely hilly and that some riders prefer the efficiency and feedback of a stiff bike.
The Katana is still very much an aero long-course tri' bike, with a long front-center measurement, relaxed head angle, and steep seat angle. But the aero shapes have been shortened and simplified to get the weight down to 1200g for the frameset. Because they're working with simpler shapes, they opted for a straight 1 1/8" steerer fork to minimize frontal area. But the fork crown is still