Our 1/8th wheelie bar attachment (Y058) mounts to all of our 1/8 buggy rear bumpers not included. Very simple to mount, just attach the supplied step spacers, insert the screws, place lock nuts and tighten.
The wheels are solid black wheels with ball bearings (Not pictured)
The advantage of using our is that they are mounted on a flexible bumper. This allows you to run off road and jump with out breaking your wheelie bar.