Nothing fancy here: CST's heavy-duty standard tube is a proven design that gets the job done. This one is sized for 16 x 4.0 fat tyres and carries a 40 mm Schrader (American) valve.

Highlights

  • Heavy-duty construction for general-purpose riding
  • Sized for 16 x 4.0 fat tyres
  • Schrader (American) valve, 40 mm long
  • Fits front or rear

Built for small fat wheels

A 4.0-inch tyre holds a lot of air at low pressure, so it needs a tube to match. This heavy-duty CST tube is made for that job on 16-inch fat wheels, as a replacement or a spare.

Compatibility & fit

Fits tyres marked 16 x 4.0. Check the size printed on your tyre's sidewall, and make sure your rim's valve hole and your pump head suit a Schrader valve. Our workshop can fit tubes and tyres for you.

Covered against manufacturing defects in materials and workmanship. Normal wear, punctures and damage from incorrect fitting or inflation are not manufacturing defects. For warranty support, return the product to Tune Cycles and we'll manage the claim with KWT Imports, CST's Australian distributor.
  • Heavy-duty CST tube
  • For 16 x 4.0 fat tyres
  • 40 mm Schrader (American) valve
  • General-purpose riding
ModelCST Heavy Duty Standard Tube
Tyre size16 x 4.0
ValveSchrader (American)
Valve length40 mm
SKU KWT-CT1640SV
Brand CST
Shipping Weight 0.2500kg
Shipping Width 0.160m
Shipping Height 0.060m
Shipping Length 0.220m