Optimum aerodynamic bicycle wheel

摘要

Embodiments described herein improve airflow around bicycle wheels by providing for one or more of: (1) a optimum leading edge width of a rim for preventing early stall in cross winds, while still allowing for sufficient stability without undue drag, while not unnecessarily increasing the rotating wheel and drag on the frame; (2) a sidewall shape with a subtle camber angle at the leading, which defines a rate of radius change at the max width of the rim—which further defines the max width and placement along the chord length for optimizing the aerodynamic properties of the rim; (3) a continuous rate of change of curvature at a spoke face, which fundamentally improves the performance and stability by generating a side force at higher yaw angles; and (4) wheel sets with a wider front rim relative to a narrower rear wheel to assist in flow attachment in high crosswind areas.

主权项

1. An apparatus, comprising:
a bicycle rim having
a spoke face,a leading edge at an outer radial edge of the bicycle rim,a sidewall extending from the spoke face to the leading edge, wherein all of the sidewall is curved, andwherein the sidewall has a maximum rate of change in a rate of change of curvature less than 0.0276 mm/mm2.