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Fits multiple tyre sizes: 2 pieces in the package. Suitable for a range of road bikes, compatible with many tyre sizes: 700 x 18/23/25/28/30/32c Presta valve length 80mm. › See more product details; Product description 40g 1/2pcs Ultralight 700C Bicycle Inner Tube TPU Road Bike Tire 28\; Product description 40g 1/2pcs Ultralight 700C Bicycle Inner Tube TPU Road Bike Tire 28\; 40g 1/2pcs Ultralight 700C Bicycle Inner Tube TPU Road Bike Tire 28\