Not yet! We’ll see what we can do, but an Arrow exhaust is more likely at this stage.

Can’t say I’ve ever had any noticeable issues as far as aerodynamics with any of the Ventura setups, or with a topbox as large as 60L. In fact in my experience there’s a lot less drag and buffeting than using a backpack, so there’s a massive advantage there in my opinion.

If there’s enough weight being carried with the bag/topbox out past the rear wheel instead of reversed to be above the pillion seat it’ll lighten the front wheel, but that’s with 15-20kg+ of gear. If you switch it around to be over the pillion seat though it solves any issue in my experience, although also obviously removes the ability to carry a pillion.

The Ninja 400 is pretty light so we’ll see how it handles with the topbox fully loaded up in both positions. Generally speaking 10kg is the maximum recommended weight for these systems too, just as something to keep in mind. I know I’ve exceeded that by a significant margin, but that’s a personal risk I take, and not something I’d recommend.