NOS OEM Polini rear axle nut & spacer for the X1, X3, X5, 50cc, Minicross minibikes. This came out of a closed dealership that was selling a lot of Polini Minicross bikes to racers in the Houston, Texas area from the late 1990s thru the mid 2000s. I have a large box of new Polini Minicross parts from that time period that will all be listed on ebay. Check out my other listings. I ship worldwide.