Ningbo Penk Intelligent Technology Co.,Ltd, Was founded in 1990'S, Specializing in producing bicycle and electric bicycle parts. The three main products are brake sets, Derailleur systems ,Pedals and more than 100 other related accessories
Index rear derailleur,
18/21speed longer cage,
direct installation
Feature: steel/resin
Color: ED.CP
Total capacity: 36T
Packing:
50PCS/CTN 44X26X18CM
