Six cylinders, 1,649 cubic centimeters, 113 liters of storage space, and more electronic aids than you can shake a stick at; the BMW K1600 GTL is a high-tech behemoth, built to devour miles in supreme comfort. It's the first bike we'd pick for a cross-country trip, grinning widely as its six inline pistons spool up like a row of angry hornets. But it's the last bike we'd want to customize. Thankfully, Yuichi Yoshizawa doesn't share our reservations. The frontman of the hit-making Japanese wor...
