Crazy Cart upgrade of swivel wheels. Requires $5 of hardware store parts and old wheel components.
Sizes:
These are rough sizes but sizes close to 73x35mm will fit the regular size and anything bigger will fit the XL size print.
Swivel: ~ 72.5mm x 35mm
Swivel XL: ~75mm x 45mm
Wheels:
Recommended Wheels:
Recommend cheap wheels (Not recommended for long life)
Hardware Store Required:
Amazon:
The author hasn't provided the model origin yet.