Eleventen 11T MTB Ceramic Bearing Jockey Wheel Pulley Road Rear Derailleur for Bike Bicycle (Red)

Description

Specification: Size: 11 T---Diameter: 42mm Material: Aluminum alloy 7005 Setting for 4/5/6mm spindle shaft rollers Apply for most rear derailleur in the market, support 7/8/9/10 speed What Is In The Package: 1 x Bicycle pulley wheel (without retail package)