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,
21/24speed long cage,
direct installation
Feature: steel CP,UCP,ED
Total capacity: 43T
Packing:
50PCS/CTN 45X26X18CM
