13T MTB Ceramic Bearing Jockey Wheel Pulley Road Bike Bicycle Rear Derailleur

100% brand new and high quality
Product: Bicycle rear derailleur pulley wheel
Size: 13 T
Structure: ceramic bearings
Material: aluminum alloy 7005
Diameter: 50mm
Setting for 4/5/6mm spindle shaft rollers
Apply for most rear derailleur in the market, support 7/8/9/10 speed
Transmission for a bicycle,stainless steel bearing for ultra durability
5 colors for choose: Black, Silver, Blue, Red, Gold

Package Content:

1x Ceramic Bearing Jockey Wheel Pulley