Duro Inner Tube 20″ 20 x 1 3/8 (37-451) 500A (37-440) AV Schrader Valve


Fit's sizes;

  • 20"
    • 20 x 1 3/8 (37-451)
    • 500A (37-440)
  • AV Schrader Valve

Only 1 left in stock


Budget inner tubes don’t need to be poor quality with Duro bike tubes. Without the big brand name to support they focus on doing what they do best, making low cost inner tubes by the million. When you simply need an inner tube to be an inner tube Duro has you covered. Grab a bargain tube today with Get Me Fixed.

Inner Tube Size: 20 x 1 3/8″

Inner Tube Valve Type: Schrader Valve 36mm

New Boxed Item, easy to fit, ready to use.


Additional information

Weight 0.166 kg
Dimensions 12 × 7 × 5 cm

Manufacturers Part Number (MPN)