Apply for most rear derailleur in the market, support 7/8/9/10 speed
Transmission for a bicycle,stainless steel bearing for ultra durability
Setting for 4/5/6mm spindle shaft rollers
Structure: ceramic bearings
Size: 13 T
Diameter: 50mm
Material: Aluminum alloy 7005
Color: Black,Gold,Red,Silver
Package Includes:
1 x Bicycle pulley wheel
