Shimano SLX RD-M663 10-Speed Rear Derailleur
Tough, aggressive and light weight All-Mountain 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