Developed with WorldTour pros and triathletes under Shimano’s “Science of Speed” philosophy, the WH-R9370 series improves on weight, aerodynamics, stiffness, and maintenance versus the previous generation. All models are optimized for 28–30mm tires and feature a redesigned hub with replaceable cup-and-cone bearings.
WH-R9370 Disc (TT/triathlon rear wheel):