Ningbo Penk Intelligent Technology Co.,Ltd, 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
1/2“X1/8” Inner chamfering
Pil length: 8.7mm
Tensile stength: 850kgf
Pin power: 90kgf
Bushing power:Nil
Color(outer/inner): CP/CP
(half-silver; silve;half-good are available by request)
Electric bikes: inside changeable speed system
