Black Dog


Red Stroke

customized Harley-Davidson Softail Fat Boy

Fat Boy times different!

A slimming cure with style! We have never done this before, a stock front end combined with our stretched aluminium tank.

Our customer wanted a flatter and more stretched line on his bike, so we decided to take our Stretched Alu Tank off the shelf and replace it with the voluminous original tank of the Softail Fat Boy.

Since the original has the speedometer unit recessed into the dashboard, we had to resort to our shapely risers with integrated speedometer for Street Bobs and Breakouts with digital display to give the rider all the important information.

To achieve the desired look, we opted for 23″ front and 21″ rear wheels with black painted rims and spokes. The spokes of our CNC-machined wheels are accentuated by the short mudguard.

We have modified the original swingarm with our kit so that the 21″ rear wheel (original 18″) can be fitted with a 260 Metzeler Cruisetec tyre (original 240 mm).

The aim was to keep the right side of the wheel clear. We used our steel rear fender with recessed lighting units and a side mount license bracket, along with a short Dr Jekill & Mr Hyde exhaust system.

For show effect when stationary, we added air suspension to the rear, while the front was also lowered and fitted with a flat handlebar conversion.


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To complete the sporty Fat Boy concept, the customer ordered a paint kit with red lines on all the anthracite bodywork, and we also contributed our drilled air cleaner with red base plate from our GP series. Jörg Ankert built a black seat with shapely quilting and red stitching, which fits in well with the overall concept.


The result is a Fat Boy that clearly stands out from the standard version and is a perfect reflection of the individual style of our customer.

Parts & Details

  • Thunderbike Swingarm Modification for Pulley Brake
  • Thunderbike Pulley Brake Kit
  • Thunderbike Brake Caliper Adapter 300->340mm, left black
  • Thunderbike Pulley Spoke polished
  • Thunderbike Rear Fender Steel 260 mm
  • Thunderbike Seat Plate
  • Thunderbike License Plate Frame Inside Plate
  • Thunderbike License Plate Lighting
  • Thunderbike Reflector Inside Plate
  • Thunderbike Tank Mount black
  • Thunderbike EFI Cover black wrinkle
  • Thunderbike Ignition Coil Relocation Kit black
  • Thunderbike Air Ride Suspension Kit
  • Thunderbike Tele Fork Lowering Kit
  • Thunderbike Side Stand Modification 155mm
  • Thunderbike Speedo Riser Kit black
  • Thunderbike Handlebar Hollywood Light
  • Thunderbike Front Fender 23'' Fiberglass
  • Thunderbike Forward Controls Base Rubber
  • Thunderbike Grip-Set Base Rubber
  • Thunderbike Passenger Footpegs Rubber Design
  • Thunderbike Toppers Base
  • Thunderbike Airbox Kit Oval
  • Thunderbike Airbox Cover Oval Drilled
  • Thunderbike Chin Fairing GP Style Long
  • Thunderbike Timer Cover Drilled
  • Thunderbike Derby Cover Drilled contrast cut
  • Thunderbike Front Axle Cover-Set
  • Thunderbike Axle Cover Swingarm left
  • Thunderbike New Digger wheel
  • Thunderbike Brake Disc Spoke Floated 340mm
  • Thunderbike Brake Disc Spoke Floated 292mm
  • Metzeler Cruisetec Rear Tire 260/35VR21 83V

Author / Editor

Kim Lara Bergerforth

Your Contact


Nico Schnepel

Customparts, Dealer Support

0049 2852 - 6777-30
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Roman Reiners

Customparts, Dealer Support

0049 2852 - 6777-30
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Julian Segler

Sales, Financing, Rental, Custombikes

0049 2852 - 6777-41
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Thomas Emky

Custombikes Service Workshop

0049 2852 - 6777-56
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More Fat Boy Customs

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


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