Shimano CUES U3020 SGS Long Cage 9 Speed Rear Derailleur

LINKGLIDE technology is very durable, up to 300% more durable than current Hyperglide drivetrain and maintaining smooth shifting Shadow design features a super low profile and optimized slant angle for light shifting action and improved clearance Wide link design increases rigidity and service life Large 11 tooth pulleys are used for longer life Aluminium bracket body with steel outer and inner plates For double, total capacity 41T, max front difference 16T 9-speed Compatible with LINKGLIDE and HG 11-speed chains Compatible with 36T low sprocket