- 0039 rear wheel hub designed to fit with VLR Emerald chassis, but will fit most 40mm kart axles.
- Black, anodized finish.
- Available in multiple widths: 40mm ID x 70mm length, 40mm ID x 95mm length.
- 3/58 bolt pattern.
Note: Each hub is sold separately! Typically racers will require (2) hubs to fit karts.