4 BACK DERAILLEUR PACK + RIDEA UPGRADES
4 Speeds Rear Derailleur PACK
* 6 COLORS OPTIONS FOR MAIN PARTS.
4 Speeds Brake + Shifter、Tensioner set、Pusher、Spring set、Cable set adjuster、11s length Chain、 Sprocket set( 11T- 13T- 16T- 20T)
4 BACK DERAILLEUR PACK + RIDEA UPGRADES
4 Speeds Rear Derailleur PACK
* 6 COLORS OPTIONS FOR MAIN PARTS.
4 Speeds Brake + Shifter、Tensioner set、Pusher、Spring set、Cable set adjuster、11s length Chain、 Sprocket set( 11T- 13T- 16T- 20T)