Mechanical Concepts provides custom ATV suspension, fabrication, and race support in Southern Oregon (Medford, Grants Pass, Ashland region). Services include suspension geometry optimization, custom A-arms and chassis, shock service and re-valving, and complete race builds. Work with a hands-on fabricator who actually races — not a parts counter.
Why Southern Oregon for ATV Customization
Southern Oregon combines ideal riding terrain with limited local fabrication expertise — until now.
The terrain demands quality
Mountain trails (technical), high desert (fast and rough), OHV parks (mixed terrain), regional racing venues. The terrain reveals suspension inadequacies fast.
Local racing community
Active ATV racing scene, off-road clubs, riding groups across disciplines. Racers need local support — quick turnaround and someone who understands their specific needs.
The gap we fill
Before: ship components elsewhere, wait weeks, hope it’s right.
Now: local consultation, custom fabrication, test and refine.
Local Riding Terrain and What It Demands
Mountain trails
Terrain: rocky technical sections, tight switchbacks, variable terrain, elevation changes.
Suspension needs: moderate travel (10–12″), balanced geometry, durable components, predictable handling.
High desert
Terrain: fast open ground, whoops, rocks and hardpack, big hits at speed.
Suspension needs: long travel (12–15+”), progressive damping, heat-resistant shocks, high-speed stability.
Mixed use
Terrain: weekend riders doing everything — trail, dune, track.
Suspension needs: versatile setup, adjustability, reliable components.
Services Offered
Suspension services
Shock rebuild and service
Complete disassembly and inspection, seal and bushing replacement, fresh oil and nitrogen recharge.
Turnaround: 3–5 days. Cost: $150–250 per shock.
Custom re-valving
Rider-specific damping, matched to weight/style/terrain. Includes rebuild.
Turnaround: 1–2 weeks. Cost: $200–400 per shock.
Spring rate optimization
Calculate correct rates for your weight, install and setup.
Cost: $50–150 per shock for springs + labor.
Complete suspension systems
A-arms, shocks, swingarms as a system. Geometry verification and optimization. Race-proven designs.
Custom fabrication
A-arms
Extended for long travel, geometry-corrected for lift, chromoly or aluminum. CNC-cut, TIG-welded, race-tested.
Timeline: 4–6 weeks. Cost: $1,200–2,000 per pair.
Chassis work
Reinforcement for racing, custom chassis ground-up, mounting point modifications.
Timeline: 6–12 weeks. Cost: $3,000–10,000+ depending on scope.
Steering components
Custom tie rods for modified A-arms, steering stems with adjustable caster, geometry-corrected lengths.
Timeline: 2–3 weeks. Cost: $200–500.
Swingarms
Extended for long travel, optimized geometry, custom lengths for specific applications.
Timeline: 4–6 weeks. Cost: $600–1,200.
Race support
Consultation
Setup assessment and recommendations, geometry analysis, component recommendations.
Cost: $150 (100% refundable or applied to work).
Race team program
Priority service for committed racers, track-side support availability, development feedback loop, sponsorship for proven racers.
Pre-season prep
Complete bike inspection, setup optimization, component service and preparation.
Working with a Hands-On Fabricator Who Races
Mike Davis isn’t a parts counter. He’s a fabricator who races what he builds.
Real-world experience
- Understands racing demands
- Knows what actually works vs sounds good
- Tests components before selling them
Honest assessment
- Won’t sell what you don’t need
- Recommends solutions for your budget and goals
- Explains why certain approaches work
Problem solving
- Seen and solved issues others miss
- Can troubleshoot from a description
- Adapts solutions to your specific needs
Direct communication — local benefits
- Meet face-to-face to discuss the project
- Bring ATV for assessment
- Test ride and feedback loop
- Relationship with the person building your components
vs shipping out
- Forms, specs, hope it works
- Delays in communication
- No opportunity for test and refine
Service Area
Primary
Medford, Grants Pass, Ashland, Jacksonville, Phoenix, Talent, Central Point.
Regional
Klamath Falls, Roseburg, Eugene — riders travel for quality work.
Occasional
Northern California (Redding, Yreka). Shipping available for components; suspension service is best done in-person.
Getting Started
Contact us
Phone, email, or web form. Quickest path to a conversation about what you need.
Schedule a consultation
$150 deposit (refundable or applied to work). Bring ATV if possible — it’s the best assessment. Discuss goals, budget, timeline.
Assessment and quote
Measure current setup, identify what needs addressing, provide a clear quote and timeline.
Build and setup
Quality fabrication (no rush jobs), proper assembly and setup, test ride and refinement.
Why Choose Local Custom Fabrication
Big brands
- Off-the-shelf compromises
- Generic sizing and geometry
- No customization
- Remote support
Local custom
- Built for YOUR ATV and riding
- Optimized geometry for your modifications
- Direct input on design
- Local support and service
Budget bolt-on kit — $800–1,200
- Generic geometry
- May or may not fit well
- Unknown quality
Custom local — $1,200–2,000
- Geometry designed for your setup
- Quality materials and construction
- Local service and support
Premium brand — $1,500–2,500
- Quality but still off-the-shelf
- May need modification to fit
- Remote service
Customer Success Stories
Desert racer — extended travel build
Challenge: stock suspension bottoming constantly in BITD qualifying.
Solution: 14″/16″ custom A-arms and swingarm, revalved Fox shocks.
Result: mid-pack to podium contender, reliable over full race distance.
GNCC amateur — first race build
Challenge: rider advancing to expert class, stock setup limiting.
Solution: 11″ travel moderate long-travel, geometry-corrected, rider-specific valving.
Result: competitive in expert class, consistent top-10 finishes.
Trail rider — lift geometry correction
Challenge: 3″ lift created bump steer, poor handling.
Solution: geometry-corrected A-arms, custom tie rods, revalved to match new leverage.
Result: handling restored, confident on technical terrain.
Frequently Asked Questions
Where are you located in Southern Oregon?
We serve the greater Southern Oregon region — Medford, Grants Pass, Ashland, Jacksonville, and surrounding areas. Riders from Klamath Falls, Roseburg, and Northern California also work with us. Consultation by appointment.
Do you work on all ATV brands?
Yes. Honda, Yamaha, Kawasaki, Suzuki, Polaris, Can-Am, others. Custom fabrication and suspension service aren’t brand-limited. Some brands have more aftermarket support than others, but we can build solutions for any platform.
How far do customers travel to work with you?
Most are within Southern Oregon. We regularly see riders from Klamath Falls, Roseburg, and Northern California who travel for quality custom work. Some ship components from farther away. For suspension service, in-person assessment is ideal but can work remotely with detailed information.
What’s your turnaround time for suspension service?
Shock rebuild/service: 3–5 business days. Custom re-valving: 1–2 weeks. Full suspension systems: 6–12 weeks depending on complexity. Racing season is busy — plan ahead. Priority service available for racing emergencies at premium rates.
Do you sponsor racers?
Yes — through a race team support program for committed racers showing results. Priority service, potential component sponsorship, and development feedback opportunities. We’re selective. Submit racing resume and results for consideration.
Key Takeaways
- Mechanical Concepts provides custom ATV suspension and fabrication in Southern Oregon (Medford/Grants Pass/Ashland)
- Services: suspension service/revalve, custom A-arms and chassis, race builds, consultation
- Southern Oregon terrain (mountain trails, high desert, racing) demands quality suspension
- Working with a hands-on fabricator who races means real-world expertise and honest assessment
- Local advantage: face-to-face consultation, quick turnaround, test and refine, ongoing support
- Serving primary Southern Oregon region; riders travel from Klamath Falls, Roseburg, Northern California
Ready to optimize your ATV?
Schedule a consultation. $150 deposit (refundable or applied to work). Bring your ATV if possible. Want to see the fabrication process? Schedule a shop tour to see CNC cutting, TIG welding, and race-proven components being built.