March 12.2026

A lot of travel from a small shock

Why does the Thunderbird FR frame have 180 mm of travel when the shock only has 75 mm?
At first glance, the answer seems simple: it’s all about the suspension leverage ratio. But in practice, the topic is much more interesting.

In this video you will learn about:

- what the frame leverage ratio really is

- why not every frame works the same way

- the difference between linear, progressive, and regressive leverage curves

- when an air shock works better and when a coil shock is the better choice

and much more !!

 

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