Amazon.com : AR-PRO (2 Pack) 8.5'' x 2" Inner Tubes Compatible with Xiaomi M365, Gotrax 50/75-6.1 and for Electric Scooters, Gas Scooters, Pocket Bikes, and Mobility Scooters with Extra Thick 2.0mm Butyl
Amazon.com: Pair of Trans American Heavy Duty Inner Tubes (15x6.00-6 TR13) : Automotive
19x7-8 Inner Tube 20x8.00-8 Rubber Tyre For 150cc 250cc Atv Quad Mi Ni Bike Gokart Replacement Cycling Inner Tube - Bicycle Inner Tube - AliExpress