Plastic or no plastic, if your wheels are nice tape up the contacts. Otherwise you scuff the wheels up.
It's worth mentioning, I noticed my original wheels are designed so there's a gap between one nub and cap. That's for prying. Sometimes that space is inconvenient, so just spin the tire.
I couldn't get my bar similar post 6 to work. Perhaps if I grinded the tip thinner, and sand paper to 3000 grit