> You just pop off your current bike's front tire and install theirs. Nah, they're selling a complete wheel (wheelset?), which consists of: Axle, electric hub,

> You just pop off your current bike's front tire and install theirs. Nah, they're selling a complete wheel (wheelset?), which consists of: Axle, electric hub, spokes, spoke nipples, rim, inner tube, valve, valve core, tire. (Addendum: To any downvoters, I was replying to the parent's original text as I first saw it. They made an edit after my reply, within their 2-hour window.)