BMW Brings Six Cylinders to Two Wheels | WIRED
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1978 Honda CBX 1024cc Six-Cylinder Motorcycle | Motorcyclist
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BMW Will Manufacture Inline Six-Cylinder Tourer: Previewed by the Concept 6 | MotorcycleDaily.com - Motorcycle News, Editorials, Product Reviews and Bike Reviews
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Honda Six-Cylinder Bikes: A Timeline | Motorcycle Cruiser
Top 10 six-cylinder production bikes | Visordown
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1978 Honda CBX 1024cc Six-Cylinder Motorcycle | Motorcyclist
