These optional RDRP B6/B64 Rear Hub Link Aluminum Inserts are a direct replacement for the fragile kit plastic inserts. They are machined from aircraft-grade 7075-T6 aluminum and sandwich the rear hubs together with the standard alloy parts that are part of the kit specification. The result is a more durable base for the outer camber link ball studs that now also take a heavy hit without risking a DNF. The inserts come blue anodized to match the remainder of RDRP's Team Associated option parts and they are usable on the B6, B6D, B64 and B64D.