... your reference Wheel sizeAgeInside legHeight12"2-3years(35 to 43 cm) 14"-17"(1.00m - 1.25m) 3'6" - 4'2 ... "14"3-5years(40 to 50 cm) 16- 20"(1.10m - 1.3m) 3'8" 4'5 ... "16"4-6years(45 to 53 cm) 18"-21"(1.2m - 1.45m) 4' - 4'8"18 ... - 1.57m) 4'6" - 5'2"d20"9+years(65 cm +) 26"+5" 5'Other: hot Sell, High Quality, Competitive Price, unique ...