This is a wheelie bar for the Arrma Typhon (1/8) BLX 6S. Also fits for the Talion (V2). Other Arrma cars, I'm not sure. But if they use the same wing mounts, it fits.

Maybe needs some more tweaking. If you like to tweak it, feel free... ;)

You'll need some longer screws.
In the wheel(s) I use some common RC bearings: 5x11x4mm. You'll need two of them. It's a tight fit.

You can choose a small or a large wheel.

Happy Printing!