Shimano
SLX M663 Shadow Rear Derailleur - 10sp SGS

• Tough, aggressive and light weight Dyna-Sys 10-speed SLX rear derailleur using revolutionary features from XT and XTR at an affordable price point
• Shadow features a super low profile design that reduces the risk of damage from trail side hazards
• Single tension spring prevents contact with the chainstay resulting in a silent ride
• Direct cable routing prevents snagging from any trail side hazards
• Alloy and steel construction leads to lower weight without compromising strength and durability
• Two fluorine-coated link pin bushings aid slick shifting on the trails
• High rigidity wide outer link braces the pulley body to increase pivot joint rigidity resulting in a crisp shift
• Strong return spring for a positive shifting feel
• Improved cable pull ratio provides a more accurate shift action making the system less prone to contamination and trail chatter
• Dyna-Sys 10-speed compatible only
• Top normal spring uses the spring to select higher gears
• SGS - long cage
• Weight - 274g