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Continue to ChatInner Tube - 90/100-19 (3.75-19), 3.25/3.5-19 - 40D2217 - PBC3520F1 - https://www.giovanni-bikes.com/parts-catalog/tires-rims-tubes/inner-tube-90-100-19-3-75-19-3-25-3-5-19-pbc3123yt
Inner Tube - 90/100-19 (3.75-19), 3.25/3.5-19 - 40D2217 - PBC3520F1 - https://www.giovanni-bikes.com/parts-catalog/tires-rims-tubes/inner-tube-90-100-19-3-75-19-3-25-3-5-19-pbc3123yt