Index rear derailleur,long cage

w/o Bracket,

Feature: Alloy/steel/resin

Capacity: 57T

Tyre tread: 82mm

Packing:50Pcs/ctn,42 x26 x23.5cm

G.W:17Kgs

定位后拨,长臂，不带接片

特征:铝合金/钢制/树脂

齿容量:57T 最大兼容齿数:52T

两导轮间距:82mm