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Inner tubes for road bikes and triathlon bikes
Road and triathlon inner tubes
There are different tubes for different tyre sizes (diameters) and tyre widths. Tubes of triathlon and race bikes usually have a Sclaverand valve, because it fits best with its small diameter for the thin rims on these bikes. The valves are about 42 mm long, this requires a special attachment on your bicycle pump. The tubes are lightweight, they weigh between 50 and 90 grams.