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 shifter, For 18-21spd
Left 3spd index or non-index,
Right5,6,7spd index or non-index
Clamp diam: Φ22.2mm
Feature: resin, steel clamp
Standard color: ED, black
Packing: 100PRS/CTN 50X32X26CM
