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Suitable for a variety of sizes: the bicycle tube fits the model of the road bike 700c, 18/23/25/28 30/32c, valve length: 80 mm. Safe and not easy to burst: thanks to the special TPU material, the durability is significantly improved compared to conventional air chambers. Ultra-light and robust: this bicycle tube weighs only 26 g, which is about 100 g less than the conventional rubber hose. The rotation inertia significantly reduces and makes starting faster. Versatile and comfortable: improved puncture resistance, light. Weight and more compact when folded. Takes up little space in your backpack or jersey. You can easily take it with you wherever you go. Advanced design: reduce the weight of your tyres, reduce the spinning mass where there is more (wheelsets), respond better to acceleration and resulting to improved handling and improved climbing speed. › See more product details; Product description Product specifications: Product name: bicycle road bike inner tube. Material: TPU. Weight: 26 g. Size: 700 x18/23/25/28/30/32c Valve length: 45 mm/60 mm/80 mm; Product description Product specifications: Product name: bicycle road bike inner tube. Material: TPU. Weight: 26 g. Size: 700 x18/23/25/28/30/32c Valve length: 45 mm/60 mm/80 mm; Product specifications: Product name: bicycle road bike inner tube. Material: TPU. Weight: 26 g. Size: 700 x18/23/25/28/30/32c Valve length: 45 mm/60 mm/80 mm