Mechanical Concepts · Southern Oregon

Engineered for the extreme.

Custom ATV chassis, suspension, and shocks — race-proven, built to finish.

541-287-6489 · Schedule a consultation

What we are

A fabrication shop that races what it builds.

Mechanical Concepts is run by Mike Davis — a hands-on fabricator who races. Suspension geometry, custom A-arms, custom swingarms, full hybrid race builds. We engineer for the actual problems racers face on the line, not what a marketing team decided racers want.

We’re not a parts catalog. Components are designed, cut, welded, and tested in our shop in Southern Oregon. CNC where it matters, TIG by certified hands, sheet metal fitted by feel when feel is what the part needs.

“What we’re about is simple: ride it, race it, and let it evolve with the racers.”

Mike Davis, owner & builder · Crystal Davis, operations

Featured

Dirt Wheels Magazine, January 2026.

Photo: Dirt Wheels Magazine / Jeff Henson. Image placeholder — to swap with build action shot.

A feature on our hand-built CRF450R/TRX desert weapon. A 2023 Honda CRF450R engine in a heavily reinforced 2005 TRX450R chassis. ~12″ front travel, low-feedback design, hand-fabricated aluminum tank, carbon fiber skid plate, dual thermal cooling. Tested by pro racer Jason Zittel in 114-degree Nevada desert.

“We just wanted to conquer the desert, so the rider can be comfortable.”
— Mike Davis

See the build Read more

Capabilities

What we build.

Every component is custom-fabricated to your setup. Most-requested: A-arms.

A-arms

Geometry-optimized, CNC-cut, TIG-welded chromoly. Extended or stock-length.

Custom builds

Hybrid quads. Different engine, different chassis, custom geometry, made to work.

Suspension service

Shock rebuild, re-valve, spring rate optimization, dyno-tested.

Chassis & swingarms

Reinforcement, full custom chassis, extended swingarms for drag and long-travel.

Steering & tie rods

Geometry-corrected for lifts and modifications. Heim joints standard for race builds.

Race-team support

Component support, technical consultation, sponsorship for proven racers.

If you can describe it, we can probably build it. One-off projects welcome.

How we work

It starts with a conversation.

Schedule a consultation

$150 deposit, 100% refundable or applied to your build. The deposit is a filter — it ensures your time with us is productive and you get expert answers, not easy ones.

We assess your setup

Bring the ATV if you can. We measure geometry, talk through your riding, and put together a specific recommendation with cost and timeline.

We build

Quality fabrication takes time. CAD design, CNC cutting, TIG welding, test-fit, refinement. You leave with a setup sheet and ongoing support.

Start a build

What to expect

Case study · Sand

Only the swingarm changed.

Corey Blakesley's sand build with Mec-Con swingarm

“The bike feels like it’s on rails.”

With the stock swingarm I couldn’t really push too hard or the rear end would get loose and unpredictable. Now I can push the rear end a lot harder. The only change I made is the swingarm.

I’m over 50 hours in on it now and not one issue.

— Corey Blakesley · sand rider

Read Corey’s full case study

Corey Blakesley's Mec-Con swingarm build

Race team

What riders are saying.

“I can’t say enough good things about the boys over at Mec-Con. They’re dedicated to bringing new and exciting innovation to the off-road world. Constantly improving on their designs and building quality parts. Ingenuity and craftsmanship for both the weekend warrior and the hard-core racers.”

— Alex Ortiz · WORCS Quad Pro #Q17 · Mec-Con + SoCal Powersports

Mec-Con + SoCal Powersports co-sponsor Alex’s WORCS Quad Pro program. He raced the 2026 Mint 400 and the Silver State 300 this season.

Race team support

Where we show up