This item for sale is a Shimano Deore XT RD-M771 SGS Long Cage 9-Speed Rear Derailleur: Brand new, new old stock in perfect new condition. Rare SGS (Super Long Cage) 101 mm version. From the legendary Deore XT group from 2007 onwards (launched celebrating XT's 25th Anniversary). Was originally purchased brand new from a cycling retailer, such as Wiggle or Chain Reaction Cycles. Date of this example is July 2014, two letter date code is (MG) later production run. This item ships securely in its original clear, printed bubble wrap pouch and includes the official Shimano instruction manual. Verified at an exact weight of 237 grams, this rear derailleur is ready for your lightweight build.

Upgrade your ride with this premium, high-performance 9-speed rear derailleur. Engineered with an all-alloy body, it delivers maximum strength and durability without adding extra weight to your setup. Shifting is exceptionally slick and effortless thanks to four fluorine-coated link pin bushings and a high-rigidity wide outer link that eliminates flex. The sealed bearing tension pulley ensures a low-friction, ultra-smooth drivetrain performance on every trail. Featuring a top-normal spring configuration, this derailleur is optimised for crisp gear changes when paired with Shimano Rapidfire shifters. Fully Mega9 compatible, it is the ultimate versatile upgrade for any hard-riding 9-speed drivetrain.

This classic component utilises Shimano's top-normal, traditional spring design, marking the final iteration of the iconic parallelogram style before the transition to the low-profile "Shadow" line (which debuted with the M772). Notably, the RD-M771 and its low-normal partner, the RD-M770, were the very first XT rear derailleurs designed without a barrel cable tensioner on the body. Instead, all gear indexing and adjustments are carried out entirely from your shifter, streamlining the setup.

Technical specifications/ details: 

• NOS, New in original retail bubble wrap

• Introduced in 2007 and remained in production through approximately 2018
  

• Deore XT rear derailleur delivers reliable and precise shifting with a stiff and lightweight open design

• Traditional / Conventional profile

• Dual-Pivot (Sprung upper B-pivot)

• Dual-spring system

• Traditional curved loop for cable routing

• 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

• Top-normal spring for use with Rapidfire shifters

• 237 g

• Year: 2014 - two letter date code is (MG) Jul 14

• Made in Japan

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