Show #473 - Pro Circuit KX450 Stage One Build

Keefer and Pro Circuit team up to create a stage one engine build that gives the rider a noticeable amount of power on the track but still is smooth enough to keep an "easy to ride feel". What is involved into such a build? Is it comparable to an SR? Can you run pump fuel? All of those questions and more will be answered in this show. Keefer will also break down what Pro Circuit can do to your suspension and how you can get more comfort as well as hold up within your KX450 SHOWA suspension.

You can listen to Show #473 - Pro Circuit KX450 Stage One Build online on Radio and Podcast. Open the player on this page to stream the available audio.

Show #473 - Pro Circuit KX450 Stage One Build is an episode from Rocky Mountain ATV/MC Keefer Tested by Kris Keefer.

This episode is 0:52:53 long.

This episode was published on Mar 30, 2026.

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