La Esmeralda

Gentle Style

GP S “Le Mans”

customized Harley-Davidson Softail Breakout

The new mega flagship from our exclusive GP series


Like our other GP Series bikes, we named the conversion after a Grand Prix race track, this time the legendary course in France GP S “Le Mans”. The S stands for “Special” for the new SE Big Bang 131 Cui engine, with about 2.2 liters of displacement the fattest, what the Screamin’ Eagle catalog has recently to offer and it stands for our Slamtail – our new, improved chassis.

Not only the engine – the entire bike plays in the top class: single-sided swingarm, powder-coated monoblock wheels made of CNC-milled aluminum in 21 and 23 inches, huge brake discs with radial calipers, a first-class chassis and a high-quality paint job.

At the rear, we’ve treated the Softail Breakout to a newly developed shock absorber in the form of the Slamtail, which can be adjusted hydraulically in height at the touch of a button and has decisive advantages over an airride. In the fork we use a new damper system from Bitubo, with which compression and rebound can be perfectly adjusted.

The high quality paint is a modern interpretation of the times of Lotus and John Player Special by Ingo Kruse Design. Le Mans is one of the most traditional race tracks, so it should be a traditional paint job. The color scheme documents the historic racing character and at the same time accentuates the sporty format of the bike.


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Combined with Milwaukee-Eight series technology, the GP S is an easy-to-ride mega show bike that is even suitable for everyday use and has an insane powerplant: 2,147 cc displacement with 123 hp at the rear wheel, the maximum torque of 178 Nm is reached at 4000 rpm. The fat 131 cui kit makes it possible.


Special thanks to our Model Rahel Chiwitt! Was great to work with you!


  • Harley-Davidson Screamin Eagle Stage IV 131 ci Kit black/highlighted
  • Thunderbike Exhaust System Grand Prix
  • Thunderbike Headlamp Cap black
  • Thunderbike Frontend Grand Prix
  • Thunderbike Clip-On Handlebars Grand Prix bicolor
  • Thunderbike Grips Base Satin black cut
  • Rebuffini RR90 Control & Switch Set hydraulic, black matt
  • Motogadget Mirror mo.view Race left
  • Thunderbike Toppers Base
  • Thunderbike Turn Signals Stripe LED with housing
  • Thunderbike Custom Alu Fuel Tank GP-Style
  • Thunderbike Single-Side Swingarm Kit 21'' Alu
  • Thunderbike Pulley Grand Prix
  • Thunderbike Brake Disc Streetmaster
  • Thunderbike Brembo Radial Monoblock M4 Caliper Set black
  • Thunderbike Forward Controls Grand Prix black
  • Thunderbike Grand Prix rear wheel 9.0x21
  • Thunderbike Grand Prix front wheel 4.0x23
  • Thunderbike Front Fender GP Style
  • Thunderbike License Plate Frame Inside Plate
  • Thunderbike License Plate Lighting
  • Thunderbike EFI Cover black wrinkle
  • Thunderbike Timer Cover New Custom
  • Avon Tyres Avon Cobra Chrome , Front/Rear, 130/60VR23 (65V)
  • Thunderbike Ignition Coil Relocation Kit black
  • Kruse Design Special Custom Painting

Contact our team!


Nico Schnepel

Customparts, Dealer Support

0049 2852 - 6777-30
Send an email


Roman Reiners

Customparts, Dealer Support

0049 2852 - 6777-30
Send an email


Julian Segler

Sales, Financing, Rental, Custombikes

0049 2852 - 6777-41
Send an email


Thomas Emky

Custombikes Service Workshop

0049 2852 - 6777-56
Send an email

Some more Breakout Customs

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Dark Horse


Viking Punch

Bat Wheeler

Purple 23

Samu’s Ride

Grey Buster

Devil 23


Razor 4.0

Blood Line

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


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