Features: brand new and high quality Bearing adopts ceramic bearing. for XX1 Eagle, X01 X1, GX, NX, X9, XX, X01. M8000, M9000, M980, M972, M780. Rigidity, light weight, comfort. Support 9,10,11 speed chain. The guide wheel is made of resin,professional and durable. Specifications: Material: Resin Size: 5.5cm/2.17in 4cm/1.57in Color:Black Blue Gold Green Red Type:12T+14T Package Includes: 2 x Rear Derailleur Pulley. note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
