This 20 inch TPU inner tube weighs 22 grams, so it takes weight straight off the wheel without costing much. Ultra light tubes are one of the easier gains you can make on a race bike.
It runs a 65mm Presta valve, also called a French valve, to suit most race rims, and fits tyres from 20 x 1-1/8 through to 20 x 1-3/8. Maximum inflation is set by your tyre pressure rating, not the tube.
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