[ The annoyed look it noted and promptly ignored. It's his motorcycle, he's not giving it up just because Sephiroth has been less ornery than he could have been.

But knowing that Sephiroth has also felt the same inexplicable pull towards one of the abandoned vehicles is useful information to have. Shadow is silent for longer than he probably needs to be, weighing his options. On one hand, his inclination is to simply strike out on his own and not worry about anyone else. On the other hand, he doesn't know how to fix a motorcycle, and this kid clearly does.

On a third, unrelated hand, he is just a kid. He's clearly competent enough that Shadow doesn't feel bad about the idea of leaving him alone, but by Shadow's measure his age is a good indicator that he's less likely to be a jerk for no reason. ]

... I'll be faster at searching vehicles than you. If you fix my bike as well, I can help you gather what you need.