The Deore RD-M592 rear derailleur features Shadow technology which uses a lower profile, making snags on rocks, branches, or other trail debris less of a worry. Other features include Shimano's Direct Cable Routing and single tension construction for smooth and crisp shifting at all times. • 9-speed compatible • Compatible with all Shimano 9-speed HG cassettes, 9-speed mountain shifters and 9-speed chains • Low profile Shadow design features direct cable routing and a stronger guide spring • Eliminates chainstay contact • 32t minimum low gear for proper function • Weight: 290 grams Brand: Shimano

Light shift effort. Direct Mount. Precise chain movement changes gears smoothly.

Capacity: 16 Teeth. Auto Part Position: Rear, Bottom. Item Weight: 0.8 Pounds. Color: Black. Brand: SHIMANO. Date First Available: September 20, 2009. Best Sellers Rank: #64,084 in Sports & Outdoors. Customer Reviews: 4.6 out of 5 stars 391 ratings 4.6 out of 5 stars. : B002PTQFXA. Sport Type: ?Cycling. Size: ?9-Speed. Model Year: ?2013. Part Number: ?IRDM591SGSS. Manufacturer: ?Shimano. Number of Items: ?1. Suggested Users: ?Unisex-adult. Color: ?Black. Model Name: ?SHIMANO Deore SGS RD-M592 Rear Derailleu. Brand Name: ?SHIMANO. Item Weight: ?0.8 Pounds. Item Dimensions LxWxH: ?6.75 x 4 x 4 inches. Package Weight: ?0.37 Kilograms. Item Package Dimensions L x W x H: ?7.05 x 5.12 x 3.82 inches.