Automotive engineering is full of ideas that must have seemed great at the time but in the cold, hard light of day can tend to look a little less than inspired. Take Yamaha’s XV750 for instance. An unbreakable engine that not only goes and sounds great, but also serves as a stressed member that the rest of the bike is built on. True innovation, yes? Well hold your horses for a second, because there’s always the bike’s pneumatic suspension and that pesky starter motor to consider. Sure, they probably seemed like pretty good calls at the time, but bake them for 35 odd years and then try them on for size them and you’ll likely find something a little less than the next successful entry into the Motorcycle Engineering Hall of Fame. So you’ll understand the irony when I tell you that the very same engineers who designed that damned XV starter motor were also the ones who created this, the XJ550 SECA. Created for the original cafe racer set from the get-go, it’s turned into somewhat of an engineering classic over the years. And it’s number one fan? Here’s California’s Thirteen and Company to vie for the position.