Bicycle rim with pinch flat resistance

A bicycle wheel comprising:

• a rim configured to support a tire,
• wherein the rim includes:
• a main body defining a bead seat;
• and
• a first flange and a second flange, the first flange and the second flange extending substantially radially from the main body to support the tire, wherein the first flange has a first flange width and a first flange height from the bead seat, wherein the second flange has a second flange width and a second flange height from the bead seat, and wherein the first flange and the second flange are spaced from each other by a flange spacing, and wherein at least one of a ratio of the first flange width to the flange spacing is at least 0.14 or a ratio of the first flange width to the first flange height is at least 0.75.

A bicycle comprising:

• a wheel supporting a frame of the bicycle, the wheel comprising a rim configured to support a tire,
• wherein the rim includes:
• a main body having one or more inner cavities that define one or more radial cavity projections;
• and
• a first flange and a second flange, the first flange and the second flange extending substantially radially from the main body to support the tire, wherein the first flange defines a radial first flange projection and the second flange defines a second radial flange projection,
• and wherein all of the one or more radial cavity projections do not intersect the radial first flange projection and the second radial flange projection.