Save my Day


customized Thunderbike Harley-Davidson Breakout

We set new standards!

With the Mugello, we are setting new standards in Softail Customizing and bringing our GP-Style concept to an unimagined level. As Harley-Davidson has already paid special attention to with its 2018 models on weight reduction & driving dynamics, our bike is continuing on this path and is also making a big difference in the custom parts. Namesake is the Italian racetrack where the Italian Grand Prix takes place every year in MotoGP.

Too high? See yourself…

Next Stop – Racing Track?!

A custom bike for all guys (and girls) who love to let it crack was the task we were asked. Thus (hardly to believe) the design of this bike was not in the first place, because it was in the development with priority to the best possible driving dynamics. So back to the roots, because Andreas was in his element here as early as the 80s and 90s and made the then super sports cars fit for the race track with targeted modifications. Enough experience was there to venture on such an unusual basis for the circuit.

Not only dreamlike at the pit stop, but also visually a very special highlight is the newly developed swing arm, which is now milled from aluminum. This makes it not only much lighter than its predecessor models made of steel, but now also extremely resistant to torsion due to its new profile. Furthermore, our monoblock wheels have been completely redesigned. Each superfluous gram has been reduced, which is especially noticeable when changing direction. Our well-known TB-R tank also lost a lot of weight because it is now also made of aluminum instead of steel.

That’s not all we’ve thought up for this bike together with Hyper Pro a matching suspension, which was installed in place of our Air Ride. Sporty, taut with perfect responsiveness and precisely adjustable over all areas, these spring elements bring with them the necessary performance that one desires for a sporty gait. Also in terms of engine should be left nothing to be desired. That’s why we helped him a little bit. The complete Screamin Eagle Racing program with 117cui now provides proper propulsion that we braked with forward radially bolted Brembo calipers and our huge floating brake discs before the turn. All these are the best assets to let it crash with the Mugello. We have left a small dedication to our wish pilot for the first race track test on the chin fairing!


By loading the video you accept the privacy policy of YouTube.
Mehr erfahren

Load video

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

The presentation of our Mugello customizing took place at the 18th Jokerfest. All information and galleries, also for the presentation of this conversion, you can see in the Event Photos Gallery. Many parts are also available as bolt-on accessories for your Harley-Davidson. In addition to the shapely aluminum swingarm and the exclusive wheels, so are also a GRP version of rear fender or chin fairing available in the Thunderbike shop. Here is a complete overview of our new Softail 2018 Parts.

Making Of Step 1

Thunderbike Racing Series

TB-R 1

TB-R 2


TB-R 3

Production-R 2


Grand Prix


Grand Prix 2




Laguna Seca


GP S “Le Mans”



Your Contact


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


Stay up to date with the Thunderbike newsletter. In our free newsletter you will find news on our custom bikes & parts, information on Harley-Davidson models, all important dates & events, used vehicles, accessories, clothing, promotions and much more! The subscription can be terminated at any time by unsubscribing in our newsletter. We refuse to disclose your data to third parties. You will receive an e-mail confirmation after the subscription. So we make sure that no unauthorized person can register you in our newsletter.