Hello together Today I upgraded my RRS P550e for overlanding to the AT wheels. I mounted the Pirelli Scorpion Allterrain + on the 20th LR rim (Style 5125). Now a small challenge arose in the assembly of the front wheels. The photographed component prevented the assembly. The original 20th rim was too tight… Now fortunately we could just unscrew the part and then the assembly worked perfectly! (The red pin on the picture is t the Torx key, which we used to unscrew) Question to you experts: Who knows the part? Why was it installed? I’m curious.