This new nx eagle™ derailleur features the proven sram 1x-specific x-horizon™ design. The larger 14-tooth x-sync™ lower pulley easily facilitates 11- to 50- and 10- to 50-tooth cassette capacity and also adds to nx eagle's overall smooth-pedaling feel. The type-3 roller bearing clutch™ provides quiet consistent performance and durability. - speed (rd): 12s - cable pull ratio: x-actuation - cage (rd): long - max tooth: 50 - color (rd): black - pulley bearings material: steel - cage material (rd): steel
