Just wanted to make a quick wheel spacer for using Yeti XL wheels with an SCX6. The wheels fit on the 17mm hex and bolt right up with the wheel nut, but has a large opening between the wheel and axle. Printed this out in some PETG I had laying around but I'm sure you can print it in what ever. Should be 12mm wide, 5mm thick, and ~6.6mm inside.