@zetsuravez It wasn't a full motorcycle the first time it appeared, and that guy was the only one who adapted to it that quickly and could actually use it better than its design even really allowed for because of his wind arts as I recall. The version we just saw this time looks like an improvement on the basic model shown in testing before. As for the pacing and skipping over the direct "So I started and continued to develop this thing" involved in that, well, adaptation from a novel. They're all kind of like that from time to time. I'd say the novel version is like, excessively detailed sometimes, the anime is probably a bare bones husk based on that with almost all explanations omitted, and the manga is somewhere in the middle. Not saying it's an excuse or anything, just that you sort of get used to it after seeing so many of them go exactly like that. Personally, I'm fine with the motorcycle as things stand, because it didn't just crop up out nowhere. It wasn't explained in depth, but it had a development process shown in the background along the way and you're easily able to assume that if he's making frameworks for four wheeled motor vehicles, he could have also tried a two wheel one in that process.
Perhaps if this version of things isn't working for you in ways like that though, you can give the novel a shot to see if things are any better. Either the pacing and explanations are better there because things like what you're looking for with the motorcycle's development were in greater detail, or this is a very faithful adaptation and you should mark this stuff down in the "cons" column for the series. Personally I kind of can't stand the Japanese web and light novel format, so I just check out any manga or anime adaptations they get and either enjoy those enough to stick with them however far they end up going (number one "con" for so many of them is "Here ya go, we adapted like 2 or three volumes of the novel but tough titties, we're done. Go buy the novels for the rest.) or move on from them entirely. The way those things are written just doesn't do it for me.