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Open Mind

Smoothless

Radical Over

customized Thunderbike Radical Frame

Thunderbike's Lowrider

Text by Peter Schulz - Easyriders

The boys of Thunderbike from Hamminkeln have worked their way up to the top regions of the European custom scene in a remarkably short time. In the meantime, they produce show bikes almost every month, which set new standards at local events. With the Radical Over, a new lowrider was constructed, which will make the water drip from the corners of the mouth.

Thunderbike is not only an official Harley dealership, but also a production site for homemade parts and bikes. Even though a considerable number of motorcycles are produced here, there are no assembly lines or prefabricated kitbikes. Every single machine is full of innovations, and all of them differ clearly from each other. This is also one of the reasons why you go down this road. If you don’t constantly try something new, you won’t end up developing any further. Andreas, the head of the crew, is not only concerned with good design, but also with the “Schrubber” – as he likes to call the bikes – really riding well.

  • Construction Year 2008
  • Finishing Faak 2008
  • Engine Screamin’ Eagle 103 CUI
  • Horse Power 100 PS
  • Carburetor Mikuni HSR 42
  • Air Cleaner Thunderbike Open Mind
  • Exhaust Thunderbike Fun Ride
  • 5 Gears
  • Clutch NH Power
  • Primary Technik NH Power / Design Thunderbike
  • Grips Thunderbike Open Mind
  • Brake Master Cylinder Rebuffini / Design Thunderbike
  • Foot Controls Thunderbike Open Mind
  • Fuel Tank WWC / Thunderbike
  • Headlamp CCI / Headwind
  • Frame Thunderbike Radical Over Rahmenkit
  • Fork Thunderbike Radical Over mit Air Ride
  • Rake 40 Grad
  • Swingarm Thunderbike Kreuzfeuer
  • Suspension Tricky Air Ride
  • Oil Tank Thunderbike Kreuzfeuer
  • Front Wheel Thunderbike Open Mind 4.5×23
  • Tyre Avon 130/60-23
  • Brake Caliper Thunderbike 6-Piston
  • Brake Disc Thunderbike Vegas
  • Rear Wheel Thunderbike Open Mind 9×21
  • Tyre Metzeler 260/35-21
  • Brake Caliper Thunderbike Pulley Bremse
  • Brake Disc Thunderbike Vegas
  • Painting Ingo Kruse, Kruse Design

The Radical Over was created within only twelve weeks and was built for the European Bike Week. It was supposed to be a bike that would not only cut a fine figure during the showdown around the lake, but also on the numerous passes in the surrounding area. The Sigle-Down- Tube Frame has been designed to achieve an extremely low seating position. You can’t get any lower than that, otherwise you’d have to sit with your ass cheeks in the curves. The steering head tilt is 40 degrees, the frame height is eight inches and the frame length is seven inches.

The fact that current show steppers have an Air Ride system with which they can be quickly lifted from an ultra-flat show look to a driving-friendly level is almost standard. As a rule, the rear end is raised or lowered. The fact that the steering head angle and thus also the castor can change sensitively as a result is usually accepted cheaply. Thunderbike, however, has solved this problem particularly tricky: the entire load can also be pumped up and down at the front. The shock absorbers of the Springer fork contain the necessary compressed air chambers. In this way, the entire bike can be perfectly adjusted at the push of a button. The gigantically large wheels should still look familiar to you from Thunderbike’s last stroke of genius: The round bikes from Thunderbike’s own production have already been mounted on the Open Mind and have been produced in 21 and 23 inch for this project. The star shape used here can also be found on several other components. The covers of the Rebuffini brake and clutch cylinders, the air cleaner as well as the fuel filler cap are worth mentioning.

 

Shooting Easyriders

Whoever gets a fat catalogue full of self-produced parts will hardly buy accessories from other suppliers. And yet on closer inspection you will find one or the other part that was not made in Hamminkeln. The headlights, for example, are made by Custom Chrome and the tank by West Coast Choppers. A Milwaukee engine was trusted for proper propulsion. Thanks to Screamin’ Eagle components, the propellant grew to 103 cubic inches and a proud 100 hp. The concentrated power is transmitted by an extremely filigree belt drive system from NH Power.

Ingo Kruse can almost be regarded as the house and courtyard painter of Thunderbike, and even in this case Masterpainter was allowed to put on a hand! From a combination of Icepearl White, Flake and Candy as well as Silver and Brandywine he conjured up a rather discreet, but nevertheless effective lacquer finish. The Hamminkelners have again done a great job and put a “scrubbing brush” on the wheels, which will surely find his friends. We still don’t know which eye-catcher will be presented next, but it’s hard to believe that it won’t be too long before it’s too late…

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