Bontrager Mystic 16 kids wheel in Silver.Upgrade or refresh the wheels on the bike of your little rider? A new wheel can completely change the look and feel of a bike for the better. When it\'s time to refresh a trusty bike, Trek Genuine Replacement Parts have you covered.Does not include the skewer, reflector, rim strip or valve.SPECIFICATIONSSizeFront, Not applicableRear, CirclipFT/RRFrontRearDiameter16\"16\"TypeClincherClincherCassette compatibilityNot applicableCirclipHub width100 mm110 mmHoles2828Butting1414Cross sectionRoundRoundBrake typeOtherCoaster brakeAttachmentBolt-onBolt-onNipple locking typeBrassBrassValveSchraderSchrader\"