Size Guide for Bike Buying
Adult
4 ft 6" to 4 ft 10" (13" -14" frame) XXS
4 ft 10" to 5 ft 1" (14" - 15" frame) XS
5 ft 1" to 5 ft 4" (15" - 16" frame) S
5 Ft 4" to 5 ft 8" (16 - 18" frame) M
5 ft 8" to 6 ft (18.5" - 20.5") L
6 ft + taller (21 - 22" frame) XL
This is a guide only, sometimes sizes and heights will overlap depending on leg length, arm reach, etc.
Online Buying Guide for Youth Sized Bicycles
10" ages 1.5 to 3
12" ages 3 - 4
14" ages 3.5 - 4
16" ages 4 - 5
20" ages 5 - 8
24" ages 7 to 11 and not quite ready for an adult XXS