Fibre Lyte ultralight rear derailleur mech plate inner cage for Shimano 11s XTR RD-M9000 SGS, XTR Di2 RD-M9050 SGS and XT RD-M8000 SGS (long cage). Waterjet cutting made from a 2.4 mm plate of high module prepreg carbon fibre (Toray T800). Comes with threaded aluminum inserts and security pin. 3K gloss finish. 97 mm jockey wheels holes distance. Only 9 gr. weight. 100% Made in UK.