Who we are

For the last two decades we have been designing & developing winning race trucks

We are happy to welcome you to Geiser Brothers.  You’ll find some interesting information about us.  We design and fabricate championship winning off-road race cars and trucks.


  • Pretty welds are pointless if the truck can’t win

    - Jeff Geiser -

RPM | 2016 Baja 500

RPM OFF ROAD 2016 SCORE Unlimited Trophy Truck Baja 500

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Smiley | Mint 400 2016

Smiley Motorsports show up to race the second race of the 2016 BITD season at the Mint 400.

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RPM | 2015 Baja 1000

RPM OFF ROAD 2015 SCORE Unlimited Trophy Truck Points Champion of the Year!

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DA | Heidi Steele

In this new episode we share a visit with the queen of the Desert Assassins herself Heidi Steele. She…

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Champion | Apdaly Lopez

The first Mexican national racer to claim the title, youth was served in an unprecedented way as RPM Racing’s…

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RPM | SCORE Season in Review

The 2015 SCORE World Desert Championship has been one amazing season for Clyde Stacy and RPM Off-Road. The successes…

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Contact us

Don't hesitate to get in touch with us
We are here to make it happen for you.

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Feel free top stop by

We welcome all of our friends.
Please keep your visits brief,
we have lots of work to do.

Geiser Brothers

2250 W. Desert Cove Ave
Phoenix, AZ 85029

(602) 944-4333





We source the highest quality parts and tools for our builds.