... timely.3.Motorcycle Tire and Tube Size: InsideDiameter8"10"12"14"&15"16"17"18"19"&21"SIZE300-8300-10300-12225-14225-16225 ... , 130/80-1718”: 2.75-18, 3.00-18, 3.25-18, 3.50-18, 90/90-18, 360H18, 4.10-18 (2)Tube Tyre (TT): :8 ... -17 18”: 2.25-18, 2.50-18, 2.75-18, 3.00-18, 3.25-18, 3.50-18, 4.10-18, 90/90-18, 100/90-18, 120/80-18 ...