Shimano Cues RD-U4000 Shadow Linkglide 9 Speed Rear Derailleur collection_wheels the 3/8" drive sockets are

the 3/8" drive sockets are forged from tough chrome vanadium steel and chrome plated for lasting durability

10% polyester

Used in conjunction with nearly any Park Tool bottom bracket tool

English threads

Shimano Cues RD-U4000 Shadow Linkglide 9 Speed Rear Derailleur collection_wheels the 3/8" drive sockets areAbout Shimano Cues RD U4000 Shadow Linkglide 9 Speed Rear Derailleur The Shimano CUES RD U4000 LINKGLIDE 1 x 9 speed rear derailleur with SHADOW RD technology impresses with smooth and reliable shifting performance. This versatile 1 x 9 speed rear derailleur provides seamless shifting and efficient pedaling for uninterrupted trail enjoyment. The flat design and chain stabilization provide generous safety reserves even for rougher terrain. The ultimate