3.50-10 motorcycle tube: Various motor tires and tubes available ... many types of gasoline or electric scooters. 3.50-10 motorcycle tube: We are one of leading manufactures ... or CENEW. But price is much more competitive.Send me E-mail, I can provide samples for you! Sell ... . 75-18, 275-21, 3. 00-8, 3. 00-10, 3. 00-12, 3. 00-14, 3. 00-16 ... 7, 3. 50-8, 3. 50-10, 3. 75-10, 3. 75-19, 4. 10-18, 4. 50-12, 4. 50- ...