Feature●Big pulley cage with aluminum cage●Reduced RPM, reduced chain refractive angle, reduce friction resistance and increase driving efficiency.●Pulley Teeth: 11T (Upper)/15T (Lower); Pulley Bearing: Steel●Material: Aluminum (pulley/cage); Reference weight: 2.4 oz (69 g).●Compatible Rear Derailleurs: Shimano 11-speed (RD-9000, RD-9070, RD-6800, RD-6870)Description
TNI rear derailleur pulley with aluminum cage for big pulley cage. Standard type with steel bearings