Deore XT Shadow rear derailleur delivers reliable and precise shifting with a stiff and lightweight open design, 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. - All-alloy construction leads to lower weight without compromising strength and durability. - Four fluorine-coated link pin bushings make this one of the slickest shifting derailleurs 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 - Mega9, 8 & 7 speed compatible - Durable sealed bearing tension pulley with low friction - Top normal spring uses the spring to select higher gears, best suited for use with Rapidfire shifters - Weight 228 g for SGS