Platinum Force

Purple 23

Steel Force

customized Harley-Davidson Softail Fat Boy 114

They are big guys

It’s no coincidence if you think you’ve seen this style before. It’s intentional! What’s good catches on and we keep getting better. The Force bikes are named for a reason. They’re fat boys, based on the Milwaukee Eight Fat Boy, and their performance lives up to the name. We’re always making them a little more powerful.

It starts with our massive wheels, 23″ at the front and 21″ at the rear. These are 3-piece ‘Big Speed‘ wheels in a high-sheen Contrast Cut finish.

Contrast cut, which means that from time to time bare metal shines through the black coating. This makes sense, especially as the Force is called the Steel Force.

To show off the bike, which is always a bit hidden at the back, we combined it with our single-sided swingarm kit. The single-sided swingarm gives a full view of the right side of the bike, including the striking centre lock. We are particularly proud of this as it makes the bike look like it has just come from the pit stop.

The counterpoint on the left is our perimeter brake, with its beguilingly cheeky brake fist on the inside. This is what sovereignty looks like. And this is how power and glory radiate out into the world.

The Steel rear fender with integrated LED lights hugs the wheel, at least when the Air-Ride is lowered. Good for when you park the bike in front of a café and sip an espresso. To keep the look consistent, we shortened the fork and lowered the front end. When you’re on the road, raise the rear for full comfort.

Also the saddle comes from our house and is adapted to the “Steel” fender

Take a closer look: Rear light and indicators are integrated into the ‘Steel’ wing

The flat Hollywood Light handlebars will keep you relaxed and riding

To keep the line flat, the insanely comfortable ‘Hollywood Light’ handlebars sit atop the front end. So you have everything under control, even when braking through the 340mm Big Speed disc. We told you, this is what confidence looks like. Jekill & Hyde’s Shorty Big Shot silencers provide a legal concert of desires to match the looks.

A 23″ Big Speed wheel, a 340mm Big Speed brake disc and behind it the M8 GP long front spoiler

The fist of the perimeter brake is beguilingly cheeky on the inside


Ingo Kruse’s paintwork allows the Steel Force’s steel motif to shine through. It’s a final chord for all the senses when you drive off the lot after your espresso. You have delivered your exclusive show.

Parts & Details

  • Thunderbike Tele Fork Lowering Kit
  • Thunderbike Side Stand Modification 155mm
  • Thunderbike Big Speed wheel
  • Thunderbike Single-Side Swingarm Kit 21'' Alu
  • Thunderbike Air Ride Suspension Kit
  • Thunderbike Pulley Big Speed
  • Thunderbike Rear Fender Steel 260 mm
  • Thunderbike Seat Plate
  • Thunderbike Front Fender 23'' Fiberglass
  • Thunderbike Brake Disc Floated Big Speed 340mm
  • Thunderbike Brake Caliper Adapter 300->340mm, left black
  • Thunderbike Belt 1'' heavy duty
  • Thunderbike Chin Fairing GP Style Long
  • Thunderbike Handlebar Hollywood Light
  • Thunderbike Riser Kit Old Style with wireholes
  • Thunderbike Toppers Base
  • Thunderbike Side Mount Licence Plate Bracket medium
  • Thunderbike License Plate Frame Inside Plate
  • Thunderbike Turn Signals Stripe LED with Housing
  • Thunderbike License Plate Lighting
  • Thunderbike Reflector Inside Plate
  • Thunderbike Airbox Base Plate Oval black matt
  • Thunderbike Airbox Cover Oval Torque TB-Logo
  • Thunderbike Timer Cover Torque with Logo
  • Thunderbike Grips Base Satin black cut
  • Thunderbike Ignition Coil Relocation Kit black
  • Thunderbike Cover Tank to Seat, black
  • Thunderbike Front Axle Cover-Set
  • Thunderbike Axle Cover Swingarm left
  • Dr. Jekill & Mr. Hyde Exhaust System
  • Metzeler ME888F Front Tire 130/60B23 M/C TL 65H
  • Metzeler Cruisetec Rear Tire 260/35VR21 83V

Author / Editor

Kim Lara Bergerforth

Your Contact


Nico Schnepel

Customparts, Dealer Support

0049 2852 - 6777-30
Send an email


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
Send an email

More Fat Boy Customs

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


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