Show #473 - Pro Circuit KX450 Stage One Build

Rocky Mountain ATV/MC Keefer Tested

Kris Keefer

Rocky Mountain, Professional, Pulpmx, Racerx, Sports %26 Recreation, Motocross, Supercross, Keefer

4.9 • 644 Ratings

🗓️ 30 March 2026

⏱️ 53 minutes

🔗️ Recording | iTunes | RSS

🧾️ Download transcript

Summary

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.

Transcript

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0:00.0	ApopamX Network production.
0:11.0	This is the Rocky Mountain ATTV MC Kiefer tested podcast.
0:15.9	The podcast you come to for the straight insight on all things motocentric.
0:20.9	Hard parts, bikes, gear, suspension, motor mods, and more.
0:25.6	It's Keeper tested.
0:27.4	Here he is, Chris Kiefer.
0:39.1	Hey, everybody, welcome in.
0:44.3	My name is Chris Kiefer, and welcome to the Rocky Mountain 8 to vmc.com Kiefer tested podcast,
0:47.7	presented by FXR Racing and REP suspension.
0:48.7	Thank you for joining me.
0:51.0	Thank you for hitting that download or subscribe button.
0:51.9	We appreciate it.
0:55.2	This show doesn't work without you guys, so we acknowledge that, and we thank you very much for being here and sharing about, I don't know, 45 to 60 minutes
1:01.5	of your life with us to talk about dirt bikes, parts, accessories, or whatever the hell we get into
1:07.8	in these shows. So we appreciate you being here. I know you've got a ton of choices out there right now for your dirt bike content. And we thank you for choosing us today, at least for an hour. And we thank you very much. If you guys want to do some shopping, guess what? You can go to my website, keferinktesting.com. Click on the banner. That is the Rocky Mountain banner. It's the only banner on my website. And what that does is you can just click on that thing and it leads you back to Rocky Mountain. And what it does is it gives us a slice of what you guys are purchasing when you check out at Rocky Mountain. And it lets the brass know that you like this show. And we get a little bit of a kickback.
1:45.9	So we are a free service here, but we do get a little bit of a kickback from your guys' purchases.
1:50.7	So thank you for the people that are using that banner.
1:53.3	It really, really does help us out.
1:54.9	Trust me, I am an amateur racing land right now.
1:58.5	So anything that you guys can do to help out on the Rocky Mountain side really does go back into Aiden and I racing all of these expensive ass amateur races.
2:09.0	So we have another eight months of this stuff and then it's going to slow down dramatically in 2027.
2:15.1	But if you guys want to do some shopping, get some parts right to your front door,
	...

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