If you’ve ever looked at the current 3 Series and thought, “Yeah, but what it really needs is two fewer wheels,” BMW has your number. The company has dropped all of the juicy details on both the K1600GT and K1600GTL onto the interwebs, and the bikes are pretty much what we expected – a tech-loaded rolling testament to German engineering. Tricks like adaptive headlights, traction control, iPod connectivity controlled by iDrive and a full-color display are all part of the package. That’s cool and all, but the biggest news comes from down below.

BMW says that the inline six-cylinder engine at the heart of both the GT and GTL is the world’s narrowest such beating heart in any production motorcycle. At 1,649 cc, the mill churns out 160 horsepower and 129 pound-feet of torque at 7,500 and 5,000 rpm, respectively. All of that punch comes from an engine that’s a mere 22 inches wide.

Additionally, BMW says that it has kept the weight of both bikes amazingly low. The K1600GT tips the scales at a skinny 703 pounds with all of its fluids in place while the K1600GTL comes in at 767 pounds. The biggest competitor to these big Bavarian cruisers, the Honda Goldwing, weighs a comparatively portly 895 pounds.

How much are you going to pay for the bikes? BMW hasn’t said just yet, but the stars point north of $21,500.