Index front derailleur.

For 24/21 speed, steel clamp.

Clamp diam: Φ28.6mm, Φ31 .8mm

Top gear: 48T Capacity: 22T

Packing:100Pcs/ct,54x24x17cm G.W:16Kgs

定位前拨，下拉式【QD-04】，上拉式【QD-04A】

24/21速，钢制夹环

安装直径:Φ28.6mm,Φ31.8mm

最大齿数:48T 齿容量:22T