2007 Harley-Davidson FLHX - Street Glide®

  2007 Harley-Davidson FLHX Thunder Mountain Frontier Custom Street Glide – Black with Red Flames

The 2007 Harley-Davidson FLHX Thunder Mountain Frontier Custom Street Glide in Black with Red Flames is a distinctive custom touring motorcycle that combines the unmistakable presence of Harley-Davidson's Street Glide platform with the bold styling and custom craftsmanship associated with Thunder Mountain Motorcycles. Available at MotoMember, this motorcycle features the iconic batwing fairing, low-slung bagger profile, hard saddlebags, V-twin character, and an eye-catching black finish accented by dramatic red flame graphics.

This is not an ordinary factory-production Street Glide. The Thunder Mountain Frontier designation identifies its custom-builder heritage, distinguishing it from both a standard Harley-Davidson FLHX and the factory-produced Screamin' Eagle Street Glide models. Its custom styling makes it especially appealing to riders who appreciate the individuality of a specialty-built motorcycle while enjoying the comfort and practicality of a touring-inspired platform.

Shoppers searching for a 2007 Harley-Davidson Thunder Mountain Frontier Custom Street Glide for sale will find a motorcycle that offers classic American V-twin character, dramatic visual appeal, and a distinctive place in custom bagger culture.

Best For

• Harley-Davidson custom motorcycle enthusiasts

• Riders who appreciate specialty-built baggers

• Weekend cruising and scenic highway riding

• Motorcycle collectors and custom-bike enthusiasts

• Riders seeking a distinctive Street Glide-style motorcycle

• V-twin touring enthusiasts

• Riders who appreciate custom flame paintwork

• Motorcycle shows, rallies, and recreational rides

Key Features

• Thunder Mountain Frontier custom designation

• Harley-Davidson FLHX Street Glide-inspired touring platform

• Classic American V-twin motorcycle character

• Black paint with dramatic red flame graphics

• Distinctive custom bagger styling

• Batwing-style front fairing

• Low-profile touring silhouette

• Hard saddlebags

• Touring-oriented riding position

• Wide handlebars and cruiser-style ergonomics

• Custom-inspired exterior details

• Belt-drive touring architecture, subject to individual build configuration

• Two-up touring potential, depending on installed seating equipment

• Distinctive collector and enthusiast appeal

Important: Thunder Mountain custom motorcycles may differ substantially from standard Harley-Davidson FLHX specifications. Engine displacement, transmission, wheels, suspension, brakes, audio equipment, and installed accessories should be verified on this specific motorcycle.

Specifications

Year: 2007
Make: Harley-Davidson / Thunder Mountain custom designation
Model: FLHX Thunder Mountain Frontier Custom Street Glide
Motorcycle Type: Custom Bagger / Touring Motorcycle
Engine Configuration: V-twin; exact engine and displacement require verification
Fuel System: Depends on the individual custom build
Transmission: Manual; exact configuration requires verification
Final Drive: Belt-drive configuration typical of the platform; verify on this motorcycle
Front Suspension: Touring-style telescopic fork; exact components require verification
Rear Suspension: Touring-style suspension; exact components require verification
Braking System: Front and rear disc brakes; specific components require verification
Wheels: Custom configuration; verify installed sizes and design
Fuel Capacity: Build-dependent
Seat Height: Build-dependent
Weight: Build-dependent
Seating Capacity: Depends on installed seating equipment
Color: Black with Red Flames
Category: Custom Harley-Davidson-Style Touring Bagger

Thunder Mountain Custom Heritage

One of the most interesting aspects of this motorcycle is its association with Thunder Mountain Motorcycles, a custom motorcycle builder known for producing distinctive American V-twin motorcycles with bold styling and specialized equipment.

Thunder Mountain motorcycles appealed to riders who wanted something more individualized than a conventional showroom motorcycle.

The Frontier custom designation adds a distinctive identity to this bike, while its Street Glide-style presentation delivers the familiar appearance of a Harley-Davidson touring bagger.

Because specialty-built motorcycles can vary significantly from one example to another, the exact engine, chassis, components, and original equipment should be confirmed through the motorcycle's identification information and build documentation.

For enthusiasts, this individuality is part of the appeal. Rather than simply following a standard factory specification, a Thunder Mountain custom can offer a combination of craftsmanship, personalization, and distinctive design.

Classic American V-Twin Riding Character

The 2007 Thunder Mountain Frontier Custom Street Glide is designed around the character riders associate with large American V-twin motorcycles.

A V-twin powerplant delivers the rhythmic engine feel and strong torque-oriented personality that make cruiser and touring motorcycles enjoyable on open roads.

The motorcycle's low-slung profile and touring-inspired layout suit relaxed highway cruising, scenic rides, and motorcycle events.

Depending on the individual build, Thunder Mountain customs may feature engine, intake, exhaust, or drivetrain configurations that differ from standard Harley-Davidson motorcycles.

For that reason, the engine should not automatically be identified as a stock 2007 Harley-Davidson Twin Cam 96 without inspecting this particular motorcycle.

Prospective buyers should confirm the installed engine displacement, modifications, maintenance history, and drivetrain equipment when evaluating this custom machine.

Distinctive Street Glide-Style Bagger Design

The Street Glide is one of Harley-Davidson's most recognizable touring designs, and this Thunder Mountain Frontier captures much of that visual personality.

Its batwing-style front fairing gives the motorcycle a commanding front profile while providing a degree of wind protection.

The hard saddlebags add touring practicality and contribute to the long, flowing bagger silhouette.

A low-profile seat, broad bodywork, and substantial V-twin engine presence reinforce the motorcycle's cruiser-inspired proportions.

The result is a custom touring motorcycle that emphasizes visual impact without abandoning the recognizable features that make baggers popular for recreational riding.

Custom Black and Red Flame Paintwork

The standout visual feature of this motorcycle is its Black with Red Flames finish.

The deep black base provides a dramatic backdrop for the red flame graphics, creating a classic American custom-motorcycle appearance.

Flame paintwork has long been associated with hot rods, custom choppers, and performance-inspired motorcycles. On this Thunder Mountain Frontier, the design reinforces its specialty-built identity.

The contrast between the black bodywork and vivid red flames draws attention to the motorcycle's elongated touring profile and sculpted surfaces.

For riders who want a motorcycle with more personality than a conventional solid-color bagger, this custom finish is a defining attraction.

Custom Components and Equipment

Specialty-built motorcycles often incorporate equipment that differs significantly from standard production models.

Documented examples of the Thunder Mountain Frontier have featured Screamin' Eagle engine components, upgraded transmissions, billet wheels, performance exhaust systems, custom paintwork, and specialized audio equipment.

These features contribute to the Frontier's appeal among enthusiasts who appreciate motorcycles with an individualized character.

However, the precise equipment installed on this 2007 Thunder Mountain Frontier should be confirmed through inspection and available build records. Not every Frontier necessarily has the same engine, wheels, exhaust, or accessories.

Touring Comfort and Road Presence

The motorcycle's touring-inspired design provides a comfortable foundation for recreational highway travel.

A broad front fairing helps deflect incoming airflow, while the low-slung seating arrangement supports relaxed cruising.

Hard saddlebags provide practical space for riding essentials and personal belongings, subject to their specific capacity and condition.

The long, substantial profile creates a commanding presence on the road, while its custom styling gives it a personality that stands apart from conventional touring motorcycles.

A Distinctive Motorcycle for Custom Enthusiasts

The appeal of the Thunder Mountain Frontier extends beyond its appearance.

Its custom-builder identity makes it an interesting alternative to a conventional production Harley-Davidson. The combination of specialty construction, recognizable American V-twin styling, and dramatic paintwork gives it particular appeal to collectors and enthusiasts.

For buyers evaluating a specialty-built motorcycle, important considerations include its identification number, title designation, engine specifications, maintenance history, and any available original build documentation.

These details help establish the motorcycle's individual configuration and history.

Common Questions

Q: Is the 2007 Thunder Mountain Frontier a Harley-Davidson Street Glide?
It is a Thunder Mountain custom motorcycle with a Street Glide-style appearance and Harley-Davidson-associated components. Although some examples are listed under the FLHX Street Glide name, the Thunder Mountain Frontier is not simply a standard factory-production FLHX. Its exact manufacturer and model designation should be verified against the title and VIN.

Q: Is the Thunder Mountain Frontier a Screamin' Eagle Street Glide?
Not necessarily. Thunder Mountain was a separate custom motorcycle builder. Some Frontier motorcycles were equipped with Harley-Davidson Screamin' Eagle engines or components, but that does not make them factory-produced Screamin' Eagle Street Glide models.

Q: What engine does the 2007 Thunder Mountain Frontier have?
Engine specifications vary by individual build. Some documented examples feature a Screamin' Eagle 103-cubic-inch V-twin, but the engine installed on this motorcycle must be confirmed before advertising a specific displacement or horsepower rating.

Q: Does the Thunder Mountain Frontier have a six-speed transmission?
Documented 2007 Frontier examples have featured six-speed manual transmissions. The exact transmission installed on this motorcycle should be verified.

Q: Is this motorcycle suitable for highway cruising?
Its V-twin character, touring-inspired seating position, front fairing, and bagger-style design make it appealing for recreational highway riding. Actual comfort and handling depend on the custom configuration and mechanical condition.

Q: What makes the Black with Red Flames finish special?
The combination of deep black paint and red flame graphics creates a classic custom-motorcycle appearance, emphasizing the Frontier's individuality and distinctive bagger silhouette.

Experience the 2007 Thunder Mountain Frontier Custom Street Glide at MotoMember

For riders who appreciate custom American V-twin motorcycles, Thunder Mountain craftsmanship, dramatic flame paintwork, and distinctive bagger styling, the 2007 Harley-Davidson FLHX Thunder Mountain Frontier Custom Street Glide in Black with Red Flames is a compelling motorcycle to consider.

Whether you're searching for a specialty-built cruiser, a unique addition to your motorcycle collection, or a custom bagger that stands apart from ordinary production models, this Thunder Mountain Frontier offers a distinctive combination of style, character, and enthusiast appeal.

Contact MotoMember today to confirm pricing, availability, mileage, mechanical condition, engine specifications, custom equipment, title information, and financing options, or visit one of our dealerships to see this motorcycle in person.

Inventory Disclaimer:
With four locations in the Virginia and Pennsylvania area, our inventory moves frequently between dealerships, so new and used units listed online may not be at the location you visit. Please call ahead to confirm the unit's availability at your preferred dealership.