Alex R390 20" x 1-1/8" 28 Hole Black with Silver Sidewalls BMX Rim Brake Compatibility: Rim BrakeERD: 430mmHoles: 28spokesISO Diameter: 451Material: AlloyRim Center Offset: 0mmRim Depth: 19mmRim Detail Color: BlackRim Diameter: 20"Rim Holes: 28 HolesRim Width: 19.6mmValve: PrestaWeight: 322g