Ryde Andra rim Specifications: Size: 20 x 1.00 inches Type of bike: children's bike Color: black Material: aluminum Weight: 515 grams Number of spoke holes: 36 Suitable for spoke thickness: 14G Rim width without rim flange: 25 mm Rim width with rim flange: 30 mm Rim height: 21 mm Valve hole: 8.5 mm With rim flange: yes