Module 26: Wheels & Tyres from STEM On Track. This pack includes:

22mm Nylock Nuts, Small 5mm Black Stub Spacers, Medium 10mm Black Stub Spacers, Large 20mm Black Stub Spacers, Bronze K-Nuts, Front Tyres On Rims (120mm Offset Flush), Rear Tyres On Rims (210mm)

 Available for purchase as a complete set or as individual components.