204 Vee Rubber Speedster Extra Wide Tire 20 x 4  The Speedster was designed for rolling speed and minimal drag on hard pack or paved terrain. The honeycomb center tread provides virtually zero rolling resistance and unbelievable tread life. The honeycomb feature also gives you excellent traction in dry or wet conditions. Large diamond shaped side knobs provide the grip you need in corners, while the tread knobs get smaller towards the center for the ultimate speed and traction. And with its balloon-style structure, you?ll feel like you?re floating on air Diameter: 406 102 – 406 For custom and chopper bikes like the Schwinn New Stingray. This tire fits on all 20″ Classic Cycle rims wider than 50 mm (~1,97 inches) ! But please check frame/fork for clearance! On a 82 mm (~3,,22 inches) rim the tire is about 105 mm (~3,66 inches) wide and it will 72 mm (~2,83 inches) protrude over the rim. 72TPI MPC Compound  E-Bike ready 25  8-20 PSI (0.6 – 1,4 bar) Weight: ~ 1,2 kg (~2,6 pounds) External Diameter of Speedster Whitewall 20 x 4 on 105 mm (~4,13 inches) rim is ~590 mm (~23,22 inches) – May vary because of pressure. If you assemble the tire on wide rims not to put more pressure than 20 PSI. It could blast. This offer includes 1 piece only