... . 2.50/2.75-16 motorcycle inner tube :Sell both motorcross tyre and motorcycle tubeless tyre Tyre size: 2. 25-16, 2. 25-17, 2. 50-14, 2. 50-16, 2. 50-17, 2. 75-14, 2. 75-17, 2. 75-18, 3. 00 ... -18, 3. 25-16, 3. 25-18, 3. 50-16, 3. 50-18, 4. 00-8, 4. 00-12 ...