Kids Bikes Sizes

 Child Height Bike Size
89 - 102cm (age 3-5) 12" Bike
99 - 117cm (age 5-7) 16" Bike
114 - 132cm (age 7-9) 20" Bike
130 - 160cm (age 9-12) 24" Bike

Mountain Bikes Sizes

 Rider Height Bike Frame Size
4'10" - 5'2" (148cm - 158cm) XS (13.5" - 15")
5'2" - 5'6" (158cm - 168cm) S (16" - 17")
5'5" - 5'10" (168cm - 178cm) M (17" - 18")
5'10" - 6'1" (178cm - 185cm) L (19" - 20")
6'1" - 6'5" (185cm - 196+cm) XL (20" +)

Road Bike Sizes

 Rider Height Bike Frame Size
5'1" - 5'3" (inside leg 27" - 29") 48cm
5'3" - 5'4" (inside leg 28" - 30") 50cm
5'5" - 5'7" (inside leg 29" - 31") 52cm
5'7" - 5'9" (inside leg 30" - 32") 54cm
5'9" - 5'11" (inside leg 31" - 33") 56cm
5'11" - 6'2" (inside leg 32" - 34") 58cm
6'1" - 6'3" (inside leg 33" - 35") 60cm
6'3" - 6'5" (inside leg 34" - 36") 62cm