20" Trial Bikes

The 20" trial bike is the most popular wheel size in trials sports worldwide.

- Wheelbase 920mm: Height of approximately 118cm to 140cm (around 6-10 years old).
 - Wheelbase 970mm: Height of approximately 139cm to 150cm (around 10-12 years old).
 - Wheelbase approximately 1000mm (depending on the manufacturer): Height of 150cm and above (around 12 years old).

It is generally better to choose a slightly larger wheelbase than one that is too short! Individual adjustments can be made with the stem and handlebars.