One of the first things neophyte bikers hear from real cyclists is "remove that pie plate!"
You know, of course, what the pie plate is: that plastic piece between the cassette and the spokes. It's more properly called a spoke protector. Does it serve a purpose? Sure it does; it protects your spokes. I'm not sure what it protects them from. Aliens? Climate change? The chain breaking and getting tangled in the spokes? My guess is the last.
What else needs to be removed? Hmmm...how about those stupid spoke-mounted reflectors? Everyone knows they serve no purpose. Except maybe making you more visible to approaching cars when you cross the street perpendicular to them. And really, what's that worth?
But of course you should remove the pie plate and the reflectors. Because only losers leave them on their bikes, while all the cool kids remove them. And besides, they weigh something! And that's never good, right? In an ideal world, your bike weighs as close to zero pounds as possible.
And that concludes this segment of obvious sarcasm and cheap shots.
I don't think my bike came with a pie plate. It did come with reflectors mounted on the wheels, but after about six months of riding, they'd disappeared. I kind of miss them, and intend to get more the next time I'm in the bike shop. I know I'm not cool; I'm past cool. Or post-cool.