Looking for a new building challenges and want to have new extensions to the original LEGO 42100 Liebherr R 9800?
Then our GBC 42100 Pack is definitely the right choice for you!
While building learn more about physics, mechanics, gearing, forces, timing, logic, mechanisms and so much more crazy engineering madness you can do with LEGO.
It doesn’t really matter if you are a GBC beginner or pro builder. Our models will show and teach you step by step building techniques and tricks in building great GBCs so that in the end you can eventually build your very own epic GBCs! How cool is that!
Learn more on the individual product pages.
Watch the Great Ball Contraptions in action!
Building Instructions Preview
Try before you buy. We completely understand. See the building instructions previews on the left or try one of our free building instructions.
Get the accessories
We have GBC Balls, handy electronics products and fun accessories available. Take a look at all our accessories!
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