A Duro inner tube in 12-1/2" x 2-1/4, available with different bent-valve angles so the valve clears a hub motor, mudguard or frame member that a straight valve can't reach. Common on prams, hand trucks, wheelbarrows and mobility equipment rather than bicycles — check the size against your existing tube before ordering.

Highlights

  • Size 12-1/2" x 2-1/4
  • Bent-valve Schrader — choose the angle that clears your fitting
  • Butyl rubber construction
  • Duro tube

Fit and compatibility

Match 12-1/2" x 2-1/4 against the size printed on your current tube or tyre sidewall. Bent valves come in different angles (see the options on this listing) — pick the one that matches what's currently fitted.

Duro tubes are covered against defects in materials and workmanship. Punctures, pinch flats from incorrect fitting, over- or under-inflation and valve damage from a poorly fitted pump head aren't covered.

For warranty support, return the item to Tune Cycles with your proof of purchase and we'll manage the claim with the distributor for you. This cover is in addition to your rights under the Australian Consumer Law.

  • Size 12-1/2" x 2-1/4
  • Bent-valve Schrader — choose the angle that clears your fitting
  • Butyl rubber construction
  • Duro tube
BrandDuro
TypeBent-valve tube
Size12-1/2" x 2-1/4
ETRTO47-203
MaterialButyl rubber
UsePrams, hand trucks, wheelbarrows and similar wheeled equipment
SKU DUR-TB-47-203-BV
Brand Duro
Shipping Weight 0.2500kg
Shipping Width 0.160m
Shipping Height 0.060m
Shipping Length 0.220m