Measure the rider

Trek’s Precaliber product pages print a wheel size for each rider-height range; this model’s own chart is used. Trek’s Kids Bike Buyer’s Guide prints different ranges — it is general guidance, shown separately on the size charts page and never mixed with this chart.

See the size charts as printed →

Units

Rider height

Hoot · Sizing Guide

How to measure

Stand barefoot against a wall, heels together, looking straight ahead. Measure from the floor to the top of the head.