BMW Inline Six Motorcycle Concept

The EICMA Milan Bike Show debuts a number of motorcycle models, most often from the European marques. Most of the time the bikes have been spied and rumored well before the official debut, but BMW pulled off a surprise with its Concept 6 – a six-cylinder design which the Bavarian firm hints may soon power a touring motorcycle.
The Straight Six powering the Concept, says BMW, “follows the well-known Straight Four in the K1300 model series.” Not all the details are in but it’s identified as a 1.6 liter displacement via a “slightly oversquare bore:stroke ratio with relatively long stroke and very small gaps between cylinders.” Like the K-Series, the Concept 6’s cylinders are tilted forward by 55 degrees.

The Inline Six engine centers the design of the Concept 6, surrounded by a “light-alloy bridge frame” that looks to be of the twin-spar aluminium variety.  BMW’s Duolever and Paralever suspension units are present and it is highlighted by their trademark shaft-drive, beefy six-piston front calipers and 17-inch stylish hoops shod with Pirelli's latest Diablo Supercorsa sticky rubber. The Six theme carries over to the exhaust, which features a six-chamber system, three outlets on each side.
As for its future? BMW says this in its PR announcement: “The new BMW straight-six will further expand the K-Series in the foreseeable future. The first model to be introduced will be an innovative and luxurious BMW touring machine. Reflecting the tradition of the BMW K-Series, this will of course be a genuine top-of-the-line product.”