SRAM GX 10-Speed Short Cage Black Rear Derailleur

The SRAM GX 10-speed short cage is a mechanical 10-speed mountain derailleur with a Roller Bearing Clutch and the shortest cage in the GX 10 line. It replaced the X.9 and X.7 10-speed models.

SRAM lists a 36t maximum cog and 30t chain wrap capacity for this version, with a weight of 260 g. It mounts to a standard hanger.

Who It's For

• Riders running a 10-speed 1x mountain drivetrain with an 11-36t cassette.
• Owners of X.9 or X.7 10-speed derailleurs needing a replacement.
• Consider the medium or long cage if you run a 2x crank with a wide gear spread.

What to Look For

• Cage: Short cage, 30t capacity. Check your chainring and cassette spread.
• Cassette: 36t largest cog.
• Shifter pull: SRAM 10-speed (Exact Actuation, per source).

Key Features

Roller Bearing Clutch. Controls chain tension through rough terrain.

Exact Actuation. Matched cable pull designed to remove slop from shifting.

Short cage. Lighter at 260 g and tucks further from rocks than longer cages.

Rider Intent Summary

• Biggest strengths: Clutch, short cage, 260 g.
• Tradeoffs: Limited capacity for 2x; 10-speed only.
• What makes it different: The lightest GX 10-speed option.

Victory's Take

We suggest the short cage for 10-speed 1x conversions where clearance matters. Victory Bicycle Studio can check your gear spread before you order.

Specifications

• Brand: SRAM
• Model: GX 10-speed
• Drivetrain speeds: 10
• Largest cog: 36t
• Chain wrap capacity: 30t
• Cage length: Short
• Mount type: 10x1 standard
• Shifter compatibility: SRAM Exact Actuation (per source)
• Clutch: Roller Bearing Clutch
• Color: Black
• Weight: 260 g
• Part number: 00.7518.080.002