A rubber torus shaped balloon which is inflated via a valve inside a tyre to keep it rigid.
A rubber torus shaped balloon which is inflated via a valve inside a tyre to keep it rigid. Innertubes are available in a wide variety of sizes and thicknesses. They are being replaced in some cycling circles with Tubeless tyres.
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created |
13 years, 2 months ago by Peter Bridger |
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34 times |
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active |
11 years, 5 months ago |
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1 |
