These parts will need replacing from time to time to ensure that your deck is running smoothly.
Best advise is that you service your board regularly, make sure everything is running free and smooth (bits of muck get in everywhere and can damage machined parts) and if not running perfectly change the the king pin bushings ( do this at least every 50 hours of riding ) and ensure your board is problem free before riding...
2 x 2mm bushing
2 x 2.5mm bushin
1 x M8washer
1 x M6 washer
1 x M6 Nylock nut
Non-EU customers purchase tax-free
Approx price :