... or 110mm rear hub motor Dimension of the tire: For 12" wheel, the tire size is 2.125; For 16" wheel, ... , please specify it to us; For 20", 24", the tire size is 1.75; For 26" wheel, normally we send ... size 1.75 tire, but we also have size 2.125, if you need ... to us; For 28" wheel, the tire size is 1.5Reinforced Bike rim and tire special for e-bikePlease read carefully for ...