The GG Quadster is a motorised four-wheeler, or quadricycle, built around a BMW R1150 motorcycle. The Swiss manufacturer Grüter + Gut Motorradtechnik (GG) keeps the bike’s inline-four engine, reworks the suspension and steering and adds two more wheels. It has been made since 2008, following an earlier version called the GG Quad.
GG Quadster at a glance
| Maker | Grüter + Gut Motorradtechnik (GG), Switzerland |
|---|---|
| Production | since 2008 |
| Type | quadricycle, a four-wheeled motor-bike |
| Based on | BMW R1150 motorcycle |
| Engine | BMW inline-four, 167 hp |
| Chassis | reworked suspension and steering, additional wheels |
| Earlier version | GG Quad |
| Registration in Germany | licensed as a four-wheel motor-bike |
| Status in California | not approved by regulators |
| Similar design | Lazareth Quadrazuma, France, about 2006 |
Based on one source: the English Wikipedia article on the GG Quadster.
History of the GG Quadster
From motorcycle to quadricycle
The Quadster starts as a BMW R1150 motorcycle. Grüter + Gut Motorradtechnik keeps the BMW inline-four engine, which produces 167 horsepower, but replaces the bike’s suspension and steering with its own arrangement and fits additional wheels, so the machine becomes a four-wheeler. In Germany a machine of this kind can be licensed as a four-wheel motor-bike rather than as a car.
The GG Quad and the Quadster
The Quadster was not the company’s first four-wheeler: an earlier version was called the GG Quad, and the Quadster has been built since 2008. The layout has limits in some markets — in California it was not approved by regulators. The design is similar to the Quadrazuma bike produced around 2006 by the French company Ludovic Lazareth.
Design and features
- BMW R1150 engine: the Quadster uses the motorcycle’s inline-four, rated at 167 hp.
- Four wheels: reworked suspension and steering plus additional wheels turn the bike into a quadricycle.
- Motor-bike registration: in Germany the Quadster can be licensed as a four-wheel motor-bike.
- Swiss small-series production: built by Grüter + Gut Motorradtechnik (GG) since 2008.
GG Quadster versions
- GG Quadster (since 2008): the model described here, built on the BMW R1150.
- GG Quad: the earlier version made before the Quadster.
- German specification: registered as a four-wheel motor-bike.
- California: the Quadster was not approved by regulators there.
This is the only GG model in the collection so far; more machines are listed in the GG collection.
Video: GG Quadster vs. GG Taurus
Video by Autómánia on YouTube.
Sources
- GG Quadster, English Wikipedia: layout, engine, maker, markets