Knowledge Base

Unlike a child's bike which is measured by wheel size, adult bikes are measured by frame size. 20" bikes fit people 5'10 to 6' 2". 19" bikes fit people 5' 9" to 5' 11". 18" bikes fit people 5' 8" to 5' 10". 17" bikes fit people 5' 7" to 5' 9". 16" bikes fit people 5' 5" to 5' 7". Folding bikes fit people from 5' 1" to 6' 1". This guide is accurate for the majority of people but there are exceptions depending on riding style.