Overview of the Harley-Davidson Softail FXDR
Introduced in 2019, the Harley-Davidson Softail FXDR 114 combined drag-race styling with Harley’s iconic V-twin thunder. Though it had a short production run, it instantly captured attention for its aggressive looks and top-tier performance. The FXDR is now a hot candidate for customization thanks to its muscular silhouette and performance-ready chassis.

FXDR Origins and Unique Features
The FXDR stands apart from other Softails with its:
- Lightweight aluminum swingarm
- Inverted front forks
- Solo seat configuration
- Factory-installed forward controls
This blend of design and engineering makes it ideal for riders seeking both power and custom flair.
Performance Specs of the Stock FXDR
- Engine: Milwaukee-Eight 114 V-Twin
- Torque: 119 lb-ft @ 3,500 rpm
- Weight: 668 lbs (wet)
- 0-60 mph: ~4.5 seconds
It’s already a beast right off the showroom floor—but there’s massive room for improvement.
Why the FXDR is Perfect for Customization
While many Harley models beg for cosmetic tweaks, the FXDR gives you a modern platform with race-bred DNA.
Aggressive Factory Styling as a Base
The futuristic headlight, sweeping rear tail section, and industrial-grade swingarm create a muscular foundation. With a few tweaks, the FXDR looks like it just rolled out of a custom garage.
Powerful Milwaukee-Eight 114 Engine
The 114ci engine is ripe for tuning. It handles performance mods like big bore kits, upgraded intakes, and advanced tuners effortlessly.
Lightweight Aluminum Swingarm
Compared to other Softails, the FXDR’s swingarm cuts unsprung weight. That makes it nimble in corners—a dream for performance builders.
Planning Your FXDR Custom Build
Before you start tearing things apart, have a solid plan. Here’s how to set yourself up for success.
Define Your Build Type
- Street Racer FXDR: Low bars, aggressive stance, speed-tuned
- Power Cruiser: Comfort meets torque, perfect for long rides
- Show Bike: Wild paint, extreme detailing, bold exhaust
Set a Budget and Timeline
Ask yourself:
- What’s your max spend?
- Are you building all at once or in phases?
- Can you ride while customizing, or is it a full teardown?
DIY vs. Hiring a Professional Custom Shop
Some mods (like lighting or seats) are DIY-friendly. Others (like fabrication or tuning) are best left to experienced builders. Consider your skill set, tools, and time.

Performance Upgrades for a Custom FXDR
A stock FXDR is already fast, but with the right upgrades, you can transform it into a track-worthy beast or a torque-rich highway king.
Engine Mods and Tuning Options
The Milwaukee-Eight 114 offers impressive power out of the box, but there’s room to go further:
- Stage I Kits: Upgrade the intake and exhaust system for better airflow and a mild power boost.
- Stage II Cams: Install performance cams for more torque across the RPM range.
- Big Bore Kits: Take displacement to 117 or 131 cubic inches for serious gains.
- Tuning Modules: Devices like the Dynojet Power Vision or Vance & Hines FP4 allow for custom fuel maps and real-time data logging.
High-Performance Exhaust Systems
Exhaust upgrades enhance both sound and performance. Some top options for the FXDR include:
- Two Brothers Racing Comp-S 2-into-1 – Lightweight and aggressive tone.
- Bassani Radial Sweepers – Eye-catching design with deep rumble.
- S&S Grand National Slip-Ons – Easy install with a throaty sound.
Suspension and Brake Enhancements
Factory forks are decent, but you can upgrade for precision handling:
- Inverted Fork Kits – Better compression and rebound control.
- Ohlins Rear Shocks – Adjustable for comfort and performance.
- Brembo or Lyndall Brakes – Improve stopping distance and feel.
Aesthetic Customization Options
How your FXDR looks is just as important as how it rides.
Custom Wheels and Tires
- Mag-style or billet aluminum wheels make a bold visual statement.
- Pair with low-profile or fat drag-style tires for added traction and stance.
Front and Rear Fenders
Chop them short for a bobber feel, or go full-custom with carbon fiber or steel-crafted fenders.
Fuel Tank Modifications
A reshaped or extended tank adds personality. Builders often integrate flush-mount gas caps or stretch the tank for a sleeker profile.
Handlebar, Mirrors, and Controls
Control layout defines riding posture and style.
Clubman Bars, Clip-Ons, and Drag Bars
- Clubman Bars offer a retro racer look.
- Clip-Ons suit café-style FXDR builds.
- Drag Bars emphasize a forward-leaning, aggressive riding position.
Custom Levers, Switchgear, and Grips
Install CNC-machined levers, micro switches, and leather-wrapped grips for a premium feel and appearance.
Seats and Rear-End Customization
The rear section is highly visible—so make it count.
Solo Racing Seats vs. Two-Up Designs
- Solo seats provide a minimalist racing vibe.
- Two-up seats can be made sleeker with custom pan and upholstery work.
Tail-Tidy Kits and Custom Lighting
Remove the stock tail section and add:
- Integrated LED strip taillights
- Flush-mount turn signals
- Side-mounted license plate brackets
Lighting, Gauges, and Electronics
Modernize your FXDR with high-tech touches.
LED Headlights and Indicators
Upgrade to adaptive LED headlights that pivot in turns, or go for projector beams for razor-sharp beams.
Digital Dash and Smartphone Integration
Swap out the stock cluster for:
- MotoGadget Motoscope Pro digital displays
- Bluetooth connectivity with Quad Lock mounts and navigation apps
Custom Paint and Finishing Touches
The FXDR’s bodywork is a blank canvas.
Unique FXDR Paint Schemes
Choose a direction:
- Matte industrial grey with bright orange accents
- Candy red with ghost flames
- Flat black with gold leaf pinstriping
Powder Coating and Chrome/Blackout Choices
Custom builds often feature:
- Blackout finishes on engine cases and pipes
- Powder-coated frames or wheels
- Select chrome accents to contrast the dark base

Best Aftermarket Brands and Parts for the FXDR
Choosing the right components can make or break your build.
Recommended Exhaust Manufacturers
- Bassani Xhaust
- Two Brothers Racing
- S&S Cycle
- Vance & Hines
Performance Tuners and ECU Tools
- Dynojet Power Vision
- ThunderMax Auto-Tuner
- Harley Screamin’ Eagle Tuner
Example Custom Harley-Davidson FXDR Builds
Need inspiration? These standout builds redefine what’s possible with the FXDR.
FXDR Café Racer Conversions
- Rear-set foot controls
- Clip-on bars
- Minimal bodywork with aggressive rake
Pro Street-Inspired FXDRs
- Supercharged engines
- Fat rear tires (240mm+)
- Low-slung fairings and air scoops
Track-Ready Custom FXDRs
- Race suspension setups
- High-compression pistons
- Weight-reduction via carbon fiber components

Legal Considerations for Customizing an FXDR
Don’t let your dream build become a ticket magnet.
Noise Regulations and Emissions Compliance
Use EPA-certified mufflers if required in your state. Some areas fine riders for excessive decibels.
Safety Standards for Custom Bikes
Ensure your mods don’t violate:
- Headlight height rules
- Turn signal spacing
- Plate and reflector requirements
FXDR Custom Build Cost Breakdown
Budget Builds (<$5,000)
- Slip-on exhaust
- Custom seat
- LED lighting kit
- Bar and grip upgrades
Mid-Range Builds ($5,000–$12,000)
- Full exhaust and intake overhaul
- Paint and fender work
- Tuning and suspension mods
Premium Customs ($15,000+)
- Full engine builds
- One-off frame or body kits
- Show-quality paint and detailing
- Air ride, audio, electronics

Maintenance and Reliability Tips Post-Customization
A custom bike still needs to be road-ready.
Routine Checks for Performance Builds
- Oil changes every 2,000–3,000 miles
- Inspect fasteners and torque bolts often
- Clean air filters regularly
Custom Part Durability and Upkeep
- Re-check wiring after major rides
- Use dielectric grease on connectors
- Store indoors to protect custom paint
Community and Support for FXDR Enthusiasts
Join others who share your FXDR obsession.
Online Forums and Social Groups
- Harley FXDR Facebook Groups
- HDForums Softail Section
- r/Harley on Reddit
Custom FXDR Meetups and Shows
- Sturgis Motorcycle Rally
- Born-Free Motorcycle Show
- Custom FXDR-specific ride-ins
FAQs About Custom Harley-Davidson Softail FXDR
1. Is the FXDR a good bike for customization?
Yes. The FXDR’s performance DNA and aggressive looks make it a standout platform for both mild and wild custom builds.
2. Can the FXDR be converted into a touring bike?
Yes, though it requires major mods like bag supports, windscreen, and a two-up touring seat.
3. Will tuning void the warranty?
Using non-Harley tuners or parts can void some components’ warranties. Always check with your dealer.
4. How much power can the FXDR engine handle?
With the right internals, the Milwaukee-Eight 114 can safely handle 130+ horsepower builds.
5. Are aftermarket FXDR parts easy to find?
Yes. Many Harley-focused parts makers design components specifically for the FXDR or compatible Softails.
6. What makes a custom FXDR stand out?
Unique styling, engine tuning, and details like custom lighting, powder coating, or hand-fabricated components set your FXDR apart.
Conclusion: Start Your Custom FXDR Journey Today
The Custom Harley-Davidson Softail FXDR blends brute force, bold styling, and modern tech into a powerhouse of potential. Whether you’re aiming for drag-strip glory, show-winning shine, or a personalized cruiser, the FXDR is your perfect canvas.
With careful planning, the right parts, and a little creative vision, you can craft a ride that reflects your soul—and dominates every road it touches.