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 front derailleur,Top&Down pull
For 24/21 speed.Steel
Installation: Fix on B.B axle
Top gear: 42T, Capacity: 20T
Packing: 50Pcs/cyn,54x24x17cm
G.W: 11 Kgs
