(20″x 3.5, 20″x 3.6, 20″x 3.8, 20″ x 4.0, 20″ x 4.5) For 32mm Schrader Valve. Ride Safe, Ride Strong, Ride Happy! Levers are used to remove and install the bike inner tubes to prevent fingers from being caught by the tire and and without damaging rim.