SRAM GX 10-Speed Rear Derailleur

The SRAM GX 10-speed is a mechanical mountain bike rear derailleur with a Roller Bearing Clutch, made to replace the X.9 and X.7 10-speed models. It uses Exact Actuation for consistent shifting.

This listing offers a medium cage and a long cage; SRAM lists a 36t maximum cog for both. The medium cage has a 35t chain wrap capacity and weighs 285 g; the long cage weighs 302 g.

Who It's For

• Mountain riders on 10-speed SRAM drivetrains, including 2x setups.
• Owners of older X.9 or X.7 10-speed bikes needing a replacement derailleur.
• Consider a different derailleur if you run 11- or 12-speed.

What to Look For

• Cage: Medium for 1x or tighter 2x spreads; long for 2x with the widest gear spread.
• Shifter pull: SRAM 10-speed mountain shifters (Exact Actuation, per source).
• Cassette: 36t largest cog.

Key Features

Roller Bearing Clutch. Holds chain tension through rough terrain, reducing chain slap and dropped chains.

Exact Actuation. SRAM's matched cable pull, designed to remove slop and shifting variation.

Two cage lengths. Medium (285 g, 35t capacity) and long (302 g).

Rider Intent Summary

• Biggest strengths: Clutch chain control on a 10-speed platform; two cage options.
• Tradeoffs: 10-speed only; 36t maximum cog.
• What makes it different: A direct replacement for X.9 and X.7 10-speed derailleurs.

Victory's Take

We keep the GX 10-speed for riders whose 10-speed mountain bikes still have a lot of trail left in them. Victory Bicycle Studio can confirm which cage suits your crank.

Specifications

• Brand: SRAM
• Model: GX 10-speed
• Drivetrain speeds: 10
• Largest cog: 36t
• Cage options: Medium (35t capacity, 285 g); Long (302 g)
• Mount type: 10x1 standard
• Shifter compatibility: SRAM Exact Actuation (per source)
• Clutch: Roller Bearing Clutch
• Color: Black
• Part numbers: 00.7518.080.001 (medium), 00.7518.080.000 (long)