Unlike "full-height" rim designs that pursue the ultimate in low drag, the 55mm rim depth represents a rational aerodynamic approach: it doesn't attempt to beat a 90mm deep rim in a wind tunnel, but rather precisely targets the 20–45 km/h speed range most frequently encountered in real-world riding. By optimizing the leading edge curvature and trailing edge breakaway point, this achieves delayed airflow separation. Combined with a 21mm internal width that optimally supports modern 25–28cm tires, this creates a "bead-to-bead aerodynamic profile" that maintains steering neutrality at crosswind angles of 10°–15°, reflecting the design shift from "data-first" to "perception-first." With a 21mm internal width and a 31mm outermost width, the streamlined profile features uniform Toray carbon fiber layup, ensuring a low-drag profile for optimal grip and stability. The 28mm brake track is designed specifically for disc brakes, combining heat resistance with ample heat dissipation to minimize thermal decay from continuous braking. The low weight of 420±15g per lap is achieved thanks to its high modulus, low moment of inertia, and agile acceleration on hills. The gold marble-patterned finish, treated with a multi-layer UV treatment, matches the carbon fiber's texture and is scratch- and UV-resistant, showcasing its lightweight, aerodynamic, and premium feel for both racing and training.
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