Outer fork bushing - Marzocchi 48mm Beta 250RR 300RR 13-19 350RR 12-19 390RR 400RR 430RR 480RR 15-19 450RR 11-15 498RR 12-15, Gas Gas EC250 EC300 11-14
Outer copper treatment, protective against rust
Tested with salt spray to verify friction resistance
With INNER OR OUTER TEFLON
