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Born Free 8 award-winning custom Harley-Davidson build by Motorcycle Tire Center Orange CA
Born Free 8 Motorcycle Show — Award Winner

Performance & Custom Upgrades — Orange, CA

We Build Bikes
Worth Showing.
Worth Riding.

From bar swaps with full internal wiring to cam jobs and engine mapping — we do the work that transforms a stock Harley into something personal. Every build starts with a conversation about what you want.

Born Free
Award Winning Builds
Custom
Bar & Wiring Work
Full
Cam & Mapping Jobs
Free
Consultation
Born Free 8 Motorcycle Show
Oak Canyon Ranch, CA — Award Winner

Our Work

We Build Show-Level Bikes

Born Free is one of the most respected custom motorcycle shows in the country. The bikes that show there represent the best work being done in the custom Harley scene. We built the gold Dyna you see here — every detail, every upgrade — and it won.

We don't just do maintenance. When a customer comes to us with a vision for what they want their bike to be, we know how to make it real — from the first conversation through the last bolt. That's what this page is about.

Start Your Build — Free Consult
MTC Born Free 8 award-winning custom Harley Dyna build Orange CA
Custom Harley-Davidson performance builds at MTC Orange CA
Harley show bike at Born Free motorcycle show by MTC

What We Do

Performance & Custom Services

Most performance upgrades are a conversation — what you want depends on your bike, your riding style, and what you're trying to achieve. Here's what we do most and do best.

Most Requested

Handlebar Swaps & Internal Wiring

The single most transformative visual upgrade on a Harley — and one of the most technically involved jobs done right. We swap bars, run all wiring internally through the new bars and frame, and reroute brake and clutch lines for a completely clean look. No external wire bundles, no zip ties, no shortcuts.

Engine Performance

Cam Jobs & Engine Mapping

Performance cam installs — S&S, Andrews, Wood Bros — with full engine mapping after. A cam without a proper tune leaves significant power on the table. We do both, in order, correctly.

Custom Electrical

Custom Wiring & Electrical Work

Lighting upgrades, custom gauge clusters, hidden wiring, switched circuits for accessories — clean electrical work that looks intentional, not added-on. Wiring is often the difference between a build that looks professional and one that doesn't.

Suspension

Suspension Upgrades

Öhlins, Progressive, and other quality suspension components installed and set up correctly. Lowering kits, upgraded rear shocks, fork spring changes — suspension work that improves both the look and the ride.

Bar Swaps

Handlebar Swaps — Done the Right Way

Changing handlebars is the fastest way to transform the look and feel of a Harley. But a bar swap done properly is a full day's work — not an afternoon project. The bars are just the starting point.

Ape Hangers

Tall bars that raise your hands above shoulder height. Classic chopper look — requires full internal wiring reroute and extended brake/clutch lines.

T-Bars

Flat crossbar style that gives a wide, upright riding position. Distinctive silhouette — popular on baggers and custom Dynas. Requires internal wiring for a clean finish.

Drag Bars

Low, straight bars that pull the rider forward into a more aggressive position. Clean and minimal — great on Sportsters and stripped-down builds.

Pullback / Riser Bars

Moderate rise with a pullback sweep — the most comfortable upgrade for touring and everyday riders who want a better position without going full ape.

Why Internal Wiring Matters

A bar swap with external wiring looks like an afterthought. The bars are new but the bundle of wires running along the outside tells everyone it was done fast, not done right. Internal wiring changes everything — the bars look like they came from the factory that way.

We run the entire electrical harness — throttle, clutch switch, brake switch, controls — through the bars and into the frame. Brake lines and clutch cables are rerouted to match the new bar length and position. The finished job has no visible wiring, no external bundles, and no shortcuts.

What's Included in a Full Bar Job

New bars and risers of your choice. Full internal wiring reroute through bars and frame. Brake line and clutch cable replacement to correct length. Controls remounted cleanly. Throttle housing repositioned and secured. Tested and ridden before handoff — we don't hand you a bike with a binding throttle or a switch that doesn't work.

How We Do It

1
Remove stock bars and document routing

We photograph and document the existing harness routing before disassembly. Nothing is cut that doesn't need to be.

2
Drill and prep the new bars

Entry and exit holes are drilled and deburred cleanly. Wires won't chafe on bare metal edges.

3
Route harness internally

Control wiring is fed through the new bars and down into the frame. Brake and clutch lines are measured, sourced to correct length, and fitted.

4
Reconnect and test every circuit

Every switch, light, and control is tested before the handlebars are torqued down. We check throttle freeplay, brake lever feel, and switch operation.

5
Test ride

The bike gets ridden before it leaves our shop. Turn signals, brakes, throttle response — everything confirmed under real conditions.

Engine Performance

Cam Jobs & Engine Mapping

A performance cam is one of the most effective upgrades you can make to a Harley V-Twin — more lift, more duration, more power through the rev range. But a cam without a proper tune is a cam that's working against itself. We do both.

Performance Cam Install

We install cams from S&S Cycle, Andrews, and Wood Bros — brands that Harley performance riders trust. Cam selection depends on your engine, what you already have done, and what you're optimizing for — more low-end torque, mid-range pull, or top-end power. We'll talk through the options and make a recommendation before any parts are ordered.

Engine Mapping & Tuning

After a cam install, the engine's fuel and ignition maps need to be updated to match the new cam's breathing characteristics. Running a performance cam on the stock map means the engine is running too lean, too rich, or with incorrect ignition timing — often all three at different points in the rev range. We map the engine after the cam goes in — this is not optional if you want the upgrade to actually work.

Supporting Mods

A cam job often pairs well with other supporting modifications — air cleaner upgrades, throttle body work, head porting. If you're already opening the engine up, it's worth discussing whether the full package makes sense for your goals and budget. We'll lay it out clearly before anything is committed.

What a Proper Cam Job Delivers

TorqueMore usable torque through mid-range
Throttle ResponseCrisper, more immediate
Top End PullStronger sustained acceleration
Idle QualitySmoother with proper mapping
HeatReduced with correct tune
SoundMore mechanical presence

Start with a consultation

Every engine is different. What's right for a stock 96" twin cam isn't right for a 110" Milwaukee-Eight. Tell us your engine, what you've already done, and what you want to feel — we'll tell you what makes sense.

Book a Free Consult ›
Custom Harley-Davidson performance bikes in the MTC shop Orange CA
Custom Harley-Davidson builds outside MTC Orange CA
MTC custom show bike at Born Free motorcycle show
Born Free 8 award winning custom Harley build by MTC

A few of the custom and performance builds that have come through our shop

Free Consultation

Tell Us What You Want to Build

Performance and custom work starts with a conversation — not a parts list. Tell us what you're starting with and what you're trying to achieve. We'll tell you what's realistic, what it takes, and what it costs.

No obligation. We'll listen to what you want, look at your bike, and give you an honest assessment. Most performance consultations take 20–30 minutes.

Bar swaps  ·  Cam jobs & mapping  ·  Suspension upgrades  ·  Custom electrical  ·  Full builds

Common Questions

Performance Upgrades FAQ

A full bar swap with internal wiring is a day-long job done right. We remove the stock bars, drill and prep the new bars, route the entire electrical harness — throttle, clutch switch, brake switch, controls — internally through the bars and into the frame. Brake lines and clutch cables are measured and replaced to correct length for the new bar position. Every circuit is tested before the bars are torqued down. The bike gets ridden before it leaves our shop. No external wire bundles, no shortcuts.
Yes — running a performance cam on the stock map means the engine is running too lean, too rich, or with incorrect ignition timing — often all three at different points in the rev range. The engine's fuel and ignition maps need to be updated to match the new cam's breathing characteristics. A cam without a proper tune leaves significant power on the table and can cause the engine to run hotter than it should. We do both the cam install and the mapping, in order, correctly.
We install cams from S&S Cycle, Andrews, and Wood Bros — brands that Harley performance riders have trusted for decades. Cam selection depends on your engine, what you already have done, and what you're optimizing for — more low-end torque, mid-range pull, or top-end power. We'll talk through the options and make a recommendation before any parts are ordered.
Absolutely — and this is often the most economical approach. If we're already opening the engine for a cam install, it's a good time to discuss air cleaner upgrades, throttle body work, or head porting. Adding performance work while the engine is already apart costs a fraction of what it would as separate standalone jobs. We'll lay out the options clearly before anything is committed.
Born Free is one of the most respected custom motorcycle shows in the country, held at Oak Canyon Ranch in Southern California. The bikes that show there represent the best work being done in the custom Harley scene — no factory bikes, no sponsorships, just builders and riders who care about the craft. We built the gold Dyna that won at Born Free 8 — every detail, every upgrade — from the first conversation through the last bolt.
Contact us or come by the shop. Performance and custom work starts with a conversation — not a parts list. Tell us what you're starting with and what you're trying to achieve. We'll tell you what's realistic, what it takes, and what it costs. Most performance consultations take 20–30 minutes. No obligation.

Ready to Build Something?

Start with a conversation. We'll tell you what's possible, what it takes, and what it costs. No pressure, no obligation.