Club Leader


Dark Force

The new Spearhead


The Dark Force is the new spearhead of our Fat Boy collection. Here, all the stops have been pulled.

The Dark Force Fat Boy is one of our highlights of this year. It stands on massive Grand Prix monoblock wheels in the dimensions 4×23 and 9×21 inches, guided at the rear by the single-sided swingarm, which is also milled from the solid aluminium. There a 6-piston caliper together with a huge Perimeter brake disc provide the necessary deceleration.

At the front, new fork arms are used, which allow two 340mm floating brake discs to be used together with PM calipers. The bike can be completely drained front and rear thanks to an Air-Ride  system and thus stands as if chiseled from a block.


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As with the technology, nothing was left to chance with the surfaces!

The entire matt-glossy paint concept is based on the gold anodized Monoblock wheels and bears the master signature of Ingo Kruse. Every detail, no matter how small, was included: Dash, engine tappet, air filter, engine cover or lamp trim contribute their part to the coherent overall picture.

Even the seat from the leather art forge Spirit Leather was made to match the bike, the coarse seams, the stitching and the embedded logo blend artfully into the rear fenders as well as the overall appearance.


As with the technology, nothing was left to chance with the surfaces!

Parts & Details

  • Thunderbike Air Ride Suspension Kit
  • Thunderbike Seat Plate
  • Thunderbike Grips Base Satin black cut
  • Thunderbike Toppers Base
  • Harley-Davidson Edge Cut Hand Control Lever Kit
  • Thunderbike Mirror Joker
  • Thunderbike Turn Signals Stripe LED with Housing
  • Thunderbike Tele Fork Lowering Kit
  • Thunderbike Riser Kit Old Style with wireholes
  • Thunderbike Flip 2 Handlebar 32cm
  • Thunderbike Chin Fairing GP Style Long
  • Thunderbike Side Stand Modification 155mm
  • Thunderbike Ignition Coil Relocation Kit black
  • Thunderbike Single-Side Swingarm Kit 21'' Alu
  • Thunderbike Forward Control Kit black
  • Thunderbike Footpeg Set Base Satin Design
  • Thunderbike Cover Tank to Seat, black
  • Thunderbike Front Fender 23'' Fiberglass
  • Thunderbike Airbox Cover Oval Torque TB-Logo
  • Thunderbike Timer Cover Torque with Logo
  • Thunderbike Derby Cover Torque
  • Thunderbike Brake Caliper Adapter 300->340mm, left black
  • Thunderbike Brake Disc Streetmaster
  • Thunderbike Rear Fender Steel 260 mm
  • Thunderbike Grand Prix rear wheel 9.0x21
  • Thunderbike Grand Prix front wheel 4.0x23
  • Thunderbike Pulley Grand Prix


Shooting Laura Schultz



Thomas Emky

Custombikes Service Workshop

0049 2852 - 6777-56
Send an email


Julian Segler

Sales, Financing, Rental, Custombikes

0049 2852 - 6777-41
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Roman Reiners

Customparts, Dealer Support

0049 2852 - 6777-30
Send an email


Nico Schnepel

Customparts, Dealer Support

0049 2852 - 6777-30
Send an email

More Conversions

You can find Thunderbike Parts and original Harley-Davidson Parts  in our online shop.


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