The team at Thunderbike has once again unleashed their creativity on a Harley-Davidson Softail Fat Boy, delivering a build that is nothing short of a royal masterpiece.

The customer wanted something truly special, and Thunderbike delivered — dressing this beast in a bold and majestic Royal Purple finish.

Purple, long associated with royalty and nobility, is no coincidence here. This bike made its debut at the Custombike Show in Bad Salzuflen and instantly captivated everyone in the room. Now, it’s forever immortalized under the name Royal Purple.

The true highlight of this build lies in its wheels, crafted using a newly developed manufacturing technique. They resemble Thunderbike’s 25th Anniversary design — monoblock wheels milled from solid aluminum — but with a twist. These aren’t just classic two-tone finishes; their surfaces shimmer in a full spectrum of colors, especially impressive on the 9-inch wide, 21-inch rear wheel.

This build is a testament to what happens when engineering and artistry collide. Here’s a glimpse at some of the premium parts and upgrades included:

• Thunderbike Single-Side Swingarm Kit 21′′ Alu
• Thunderbike Pulley Anniversary Single Side
• Thunderbike Brake Disc Streetmaster
• Thunderbike Brake Caliper Adapter 300->340mm, left black
• Thunderbike Seat Plate
• Thunderbike Reflector Inside Plate
• Thunderbike Custom Alu Tank (15 ltr., stretched)
• Thunderbike Hydraulic clutch Conversion Kit chrome
• Thunderbike Grips Base Satin black cut
• Thunderbike Ignition Coil Relocation Kit black
• Thunderbike EFI Cover black wrinkle
• Thunderbike Tele Fork Lowering Kit
• Harley-Davidson Cover Battery Right, Gloss Black
• Harley-Davidson Empire Rider Footboard Kit chrome
• Harley-Davidson Empire Large Rear Brake Pedal Pad chrome
• Harley-Davidson Empire Passenger Footpegs chrome
• Harley-Davidson Empire Shifter Peg chrome
• Harley-Davidson Hand Control Lever Kit chrome
• Harley-Davidson Clutch Bracket and Master Cylinder Reservior Kit chrome
• Harley-Davidson Clutch Bracket and Master Cylinder Reservoir Kit chrome
• Harley-Davidson Switch Housing Kit, chrome
• Harley-Davidson Switch Cap Kit chrome
• Thunderbike Chin Fairing GP Style Long
• Harley-Davidson Willie G Skull Derby Cover
• Harley-Davidson Timer Cover Willie G. Skull
• Arlen Ness Big Sucker Oval Upgrade Air Filter Element
• Thunderbike Front Fender 23′′ Fiberglass
• Harley-Davidson Lower Fork Sliders chrome
• Harley-Davidson Switch Housing Kit, chrome
• Thunderbike 25th Anniversary wheel
• Thunderbike Rear Fender Steel 260 mm
• Thunderbike License Plate Frame Inside Plate
• Thunderbike License Plate Lighting
• Thunderbike Handlebar Hollywood Light
• Thunderbike Flat Riser Kit 2′′
• Thunderbike Toppers Base
• Thunderbike Front Axle Cover-Set
• Thunderbike Turn Signals Stripe LED with Housing

La entrada Harley-Davidson Softail Fat Boy – Royal Purple by Thunderbike aparece primero en DARK KUSTOM.

Tucan – The Bündnerbike That Brings Passion to Two Wheels

The Tucan series represents a custom bike that seamlessly combines pure craftsmanship, style, and the unmistakable power of a Harley-Davidson. Inspired by the majestic lines of the cruiser platform, the Tucan series blends classic elegance with modern individuality. Every detail has been crafted with precision and care to deliver a riding experience that is as unique as it is unforgettable.

The Tucan series embodies character, freedom, and the passion to transform roads into personal adventures – a true Bündnerbike!

Technical Data

FEATURES & HIGHLIGHTS

Aerodynamics

• Bündnerbike Tank 3D
• Bündnerbike Rear Fender 3D with LED
• Bündnerbike Seat Plate with Diamond Rising Stitching

Special Accessories

• Harley-Davidson Adversary Handlebar Grips
• Harley-Davidson Adversary Rider Footboards
• Harley-Davidson Adversary Timer Cover
• Harley-Davidson Derby Cover
• Bündnerbike Drag Bar Handlebar
• Bündnerbike Flush & Keyless Fuel Cap
• Bündnerbike License Plate with Lighting

SOUND

Fully Legal

The Jekill & Mr. Hyde exhaust system is equipped with electronic sound control, offering an impressive acoustic experience while remaining fully compliant with legal regulations.

PAINTWORK & COATING

The Tucan’s paintwork exclusively features stylish shades of gray and black, giving the bike a timeless elegance and bold presence. Carefully applied black accents and lettering create a harmonious contrast that highlights specific details.

WHEELS & CHASSIS

Bündnerbike Air Suspension

The certified pneumatic air suspension allows seamless adjustment of both the vehicle’s height and suspension characteristics.

Wheels
Milled, Lakester cast aluminum, black powder-coated

Front Fork
49 mm telescopic fork with dual rate springs, lightweight aluminum triple clamps, and “Beer Can” covers

Braking System

• Harley-Davidson brakes: four-piston fixed caliper at the front, two-piston floating caliper at the rear
• Harley-Davidson brake discs: floating single disc with Split 7 spokes design on both front and rear

La entrada Cruiser Fat Boy 114 ‘Tucan II’ by Bündnerbike aparece primero en DARK KUSTOM.

Technical Specifications

Features & Highlights

Aerodynamics

• Bündnerbike Tank 3D
• Bündnerbike Rear Fender 3D with LED
• Bündnerbike Seat Plate with Diamond Rising Stitching

Special Accessories

• Harley-Davidson Adversary Handlebar Grips
• Harley-Davidson Adversary Rider Footboards
• Harley-Davidson Adversary Timer Cover
• Harley-Davidson Derby Cover
• Bündnerbike Drag Bar Handlebar
• Bündnerbike Flush-Mount, Keyless Fuel Cap
• Bündnerbike License Plate with Illumination

Sound Syste

Fully Legal

The exhaust system by Jekill & Mr. Hyde features an electronic sound control system. This ensures that the exhaust not only delivers an impressive acoustic experience but is also fully compliant with legal standards.

Paintwork & Coating

The paintwork features an intricate copper base coat with an orange hue, giving the Tucan a unique presence. Carefully applied black accents and lettering create an appealing contrast, drawing attention to specific details and adding a bold character to the bike. Precisely designed stripes contribute to the exclusivity of the paintwork by enhancing the visual dynamics and emphasizing the overall aesthetic of the Tucan.

This paintwork has been executed with the utmost craftsmanship and attention to detail, ensuring the bike is not only a means of transportation but also an artistic masterpiece. The copper base, black accents, and carefully positioned stripes combine into a harmonious composition, making the Tucan a true eye-catcher.

Wheels & Suspension

Bündnerbike Air Suspension

The tested pneumatic air suspension allows seamless adjustment of both the vehicle’s height and suspension properties, ensuring maximum adaptability.

Wheels

• Precision-machined Lakester cast aluminum wheels

Front Fork

• 49-mm telescopic fork with dual-rate springs, lightweight aluminum triple clamps, and “Beer Can” covers

Braking System

• Harley-Davidson brakes: Four-piston fixed calipers in the front and two-piston floating calipers in the rear
• Harley-Davidson brake discs: Floating single disc with Split 7 Spokes in both front and rear

La entrada Cruiser Fat Boy 114 ‘Tucan’ by Bündnerbike aparece primero en DARK KUSTOM.

Fat Boy parts

• Thunderbike rear fender steel 260 mm
• Thunderbike seat shell
• Müller Motorcycle AG Müller MP1 lowering 0 – 35 mm
• Metzeler Cruisetec rear tire 260/40VR18 M/C TL 84V
• Metzeler Cruisetec front tire 160/60R18 M/C TL 70V
• Thunderbike handlebar Atlas Wide 35cm black matt
• Thunderbike riser kit Atlas 32mm black matt
• Thunderbike hydraulic clutch conversion kit black
• Thunderbike grips base satin black cut
• Thunderbike toppers base
• Thunderbike indicator stripe LED in aluminum housing
• Thunderbike side license plate holder Medium Pro black matt
• Thunderbike license plate holder inside plate
• Thunderbike license plate lighting
• Thunderbike reflector inside plate
• Thunderbike front fender GFK
• Thunderbike front spoiler GP Style Long
• Thunderbike footrest forward kit black
• Thunderbike driver footrest base satin Design
• Thunderbike gearshift & brake peg satin
• Thunderbike pillion footrest satin design
• Motogadget mo.view race mirror left
• Motogadget mo.view race mirror right
• Thunderbike pillion seat pad large without cover
• Thunderbike pulley brake system
• Thunderbike airbox cover oval torque TB logo
• Thunderbike ignition cover new custom
• Thunderbike clutch cover torque logo
• Thunderbike axle cover set rear
• Thunderbike axle cover set front
• Thunderbike axle cover swing arm left
• Thunderbike fork end caps top black matt

La entrada Harley-Davidson Softail Fat Boy ‘Dark Inferno’ by Thunderbike aparece primero en DARK KUSTOM.

The design of Thanos reflects the masculine, unmistakable power of the Marvel character.

The gold and purple color scheme pays direct homage to the iconic Infinity Gauntlet, giving the Fat Boy an enthralling presence. The massive Grand Prix monoblock wheels emphasize strength and precision, while the purple-stitched leather seat perfectly fulfills Jörg’s vision of powerful elegance—a bike that, like the superhero himself, stands above all.

A standout feature is the dual air suspension system, incorporating both the front fork and rear swingarm, allowing the bike to achieve an impressive low stance when parked. This technical refinement evokes the moment when Thanos unleashes his full power. Additionally, the radially mounted dual disc brake system and black engine components create a flawless combination of technical performance and unmistakable style.

Parts & Details

• Thunderbike Grand Prix Rear Wheel 9.0×21
• Thunderbike Grand Prix Front Wheel 4.0×23
• Metzeler Cruisetec Rear Tire 260/35VR21 83V
• Thunderbike Brake Disc Streetmaster
• Thunderbike Rear Fender Steel 260 mm
• Thunderbike License Plate Holder Inside Plate
• Thunderbike License Plate Lighting
• Thunderbike Reflector Inside Plate
• Thunderbike Pulley Grand Prix
• Thunderbike Atlas Wide Handlebar 35cm black
• Thunderbike Atlas Riser Kit 32mm black
• Thunderbike Base Grips Satin black cut
• Thunderbike Base Toppers
• Motogadget mo.view Sport 150 Mirror black
• Thunderbike Forward Control Kit black
• Thunderbike Mounting Kit for Forward Controls
• Thunderbike Single-Sided Swingarm Conversion Kit 21” Aluminum
• Thunderbike GP Style Long Bellypan
• Thunderbike Fork Tube Kit Dual Flange black
• Thunderbike Brake Conversion Kit Radial
• Brembo Radial Monoblock M4 Caliper Set black
• Thunderbike Rider Foot Pegs Base Satin Design
• Thunderbike Front Fender 23” Fiberglass
• Thunderbike Shift Peg & Brake Peg Satin
• Thunderbike Stripe LED Turn Signals in Aluminum Housing
• Thunderbike Airbox Base Plate Oval matte black
• Thunderbike Side Stand Shortened 155mm
• Thunderbike Seat Base
• Thunderbike Foam Core for TB Seat Base
• Thunderbike Oval Torque Airbox Cover with TB Logo
• Thunderbike Ignition Cover Torque
• Thunderbike Torque Ignition Cover with Logo
• Thunderbike Torque Clutch Cover with Logo
• Thunderbike EFI Cover black wrinkle
• Thunderbike Front Axle Cover Set
• Thunderbike Left Swingarm Axle Cover
• Thunderbike Right Swingarm Axle Cover

La entrada Harley-Davidson Softail Fat Boy 114 ‘Thanos’ by Thunderbike aparece primero en DARK KUSTOM.

Technical Specifications

Swingarm

Wide Tire Swingarm / Rindt

Rear Wheel

Original rim widened / Rindt to 8.5 x 18, powder-coated, including ABS brake disc adapter with bearing mount, spacers

Front Wheel

Original rim widened / Rindt to 4 x 18, powder-coated

Rear Fender

Steel rear fender / Rindt

Front Fender

Steel / Rindt

Seat

Custom-made seat pan / Rindt

Upholstery

Genuine leather in a diamond pattern, side accents in Alcantara, padding by Warmsbach

Handlebars

Chubby with internal cable routing and short risers

Suspension

Thunderbike Airride

Drive

Primary offset 7 mm, rear pulley narrowed / Rindt, and belt shortened to 20 mm / Rindt

Exhaust

Kesstech ESM 3 valve exhaust

Header Pipes

Kesstech

Front Fork

H-D stock fork with progressive springs, completely powder-coated

Tires

Front: Metzeler ME 880 130-60 R18
Rear: Metzeler ME 880 260-40 R18

Indicators

LED front and rear

Extras

Engine parts, grips, headlight housing, fork, dash cover, handlebars, air filter, axle covers, etc., powder-coated / Rindt

Paintwork

Matte pearl finish

La entrada Harley-Davidson Fat Boy S by Rindt-Felgen aparece primero en DARK KUSTOM.

Neo-Chopper: The Best of Both Worlds

The Neo-Chopper expertly combines the iconic style of classic chopper bikes with the performance and comfort of cutting-edge technology, sparking a nostalgic yearning for the boundless freedom of days gone by. Every ride becomes a powerful expression of style and individuality. The wind brushes against your face, not as an irritation but as a symbol of pure freedom. With each breath, you take in the fresh mountain air, filled with the scent of pine and fresh grass, while the powerful energy of the engine pulses through your entire being.

Technical Specifications

• Tank and Rear Fender: The sheet metal work on the tank and rear fender is exceptionally precise and elegantly shaped. The rear fender includes integrated lighting, enhancing both aesthetics and functionality.

• Quilted Seat: The seat features an elegant quilted pattern, seamlessly integrated with the rear bodywork. It is also contoured to fit the tank, ensuring a harmonious flow and a comfortable riding experience.
• Apehanger Handlebar The apehanger handlebar is equipped with Rebuffini hand controls and mirrors, providing a striking appearance and comfortable handling.
• License Plate Mount The license plate can be changed without screws, allowing for quick and easy adjustments.
• Adjustable air suspension
• Dual-Chamber Air Suspension: The dual-chamber air suspension is infinitely adjustable in height and stiffness, allowing for optimal adaptation to different riding conditions and rider preferences.
• Kess-Tech Valve Exhaust System: The Kess-Tech valve exhaust system is equipped with electronic sound control. This means the exhaust end pipes offer an impressive acoustic experience while remaining fully legal.
• Bündnerbike Air Filter

La entrada Cruiser Fat Boy 114 ‘Spartanner II’ by Bündnerbike aparece primero en DARK KUSTOM.

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Builder THUNDERBIKE

Contact @thunderbikecustoms

Country Germany

Model H-D Fat Boy

Style Cruiser

Parts & Details

• Thunderbike Big Speed wheel
• Metzeler Cruisetec Rear Tire 260/35VR21 83V
• Metzeler ME888F Front Tire 130/60B23 M/C TL 65H
• Thunderbike Brake Disc Floated Big Speed 340mm
• Thunderbike Brake Caliper Adapter 300->340mm, left black
• Thunderbike Pulley Big Speed
• Thunderbike Cover Tank to Seat, black
• Thunderbike Tele Fork Lowering Kit
• Thunderbike Front Fender 23” Fiberglass
• Thunderbike Single-Side Swingarm Kit 21” Alu
• Thunderbike License Plate Frame Inside Plate
• Thunderbike License Plate Lighting
• Thunderbike Reflector Inside Plate
• Thunderbike Air Ride Suspension Kit
• Thunderbike Rear Fender Steel 260 mm
• Thunderbike Seat Plate
• Thunderbike Seat Foam for TB Seat Plate
• Thunderbike Passenger Footpegs Satin Design
• Thunderbike Handlebar Hollywood Light
• Thunderbike Grips Base Satin black cut
• Thunderbike Toppers Base
• Thunderbike Turn Signals Stripe LED with Housing
• Motogadget mo.view Club Mirror black
• Thunderbike Forward Controls Base Satin
• Thunderbike Airbox Cover Oval Torque TB-Logo
• Thunderbike EFI Cover black wrinkle
• Thunderbike Timer Cover Torque with Logo
• Thunderbike Derby Cover Torque Logo
• Thunderbike Front Axle Cover-Set
• Thunderbike Axle Cover Swingarm left
• Thunderbike Axle Cover Swingarm right
• Thunderbike Fork Upper End Caps black

La entrada Harley-Davidson Softail Fat Boy ‘Raptor Force’ by Thunderbike aparece primero en DARK KUSTOM.

Builder THUNDERBIKE

Contact @thunderbikecustoms

Country Germany

Model H-D Fat Boy

Style Ape hanger

Parts & Details

• Thunderbike grips base satin black cut
• Thunderbike Toppers Base
• Thunderbike seat shell
• Thunderbike single seat leather quilted black
• Thunderbike indicator stripe LED in aluminum housing
• Thunderbike Strut Stripe LED 3in1 indicators & taillight black
• Thunderbike side license plate holder Medium Pro black
• Thunderbike license plate holder inside plate
• Thunderbike license plate light
• Thunderbike rotary knob shock absorber matt black
• Thunderbike rear axle cover set
• Thunderbike axle cover swingarm left
• Thunderbike front axle cover set
• Thunderbike power filter kit Grand Classic
• Thunderbike EFI Cover black wrinkle
• Thunderbike tank mount black
• Thunderbike cover tank seat transition black
• Thunderbike front fender 21” GRP
• Performance Machine PM Revel Front Wheel 21 X 3.5 Platinum Cut
• Performance Machine PM Revel rear wheel 8.5×18 Platinum Cut
• Performance Machine PM Pulley Virtue Platinum Cut 66T X 1”
• Performance Machine PM Race Series Camshaft Cover Black Ops
• Performance Machine PM Race Series Upper Gear Cover Black Ops
• Performance Machine PM Race Series Gear Cover Side Black Ops
• TXT Customparts TXT Rear Fender Smooth Short without Cut Out 260mm
• TXT Customparts TXT seat shell for TXT fender
• Kodlin Fat Ape 2” Str8UP Wide 28cm black
• Kodlin Big Block Riser 1 1/4” black
• Legend Air Legend Air-A shock absorber black
• Galfer Floated Round brake disc front black
• Galfer Floated Round rear brake disc black
• Highsider mirror Montana-Slim black
• Arlen Ness Speedliner Driver Running Boards Black

La entrada Softail Fat Boy 114 performance ‘Undertaker’ by Thunderbike aparece primero en DARK KUSTOM.