SRAM Apex Eagle Rear Derailleur

The SRAM Apex Eagle rear derailleur is a 12-speed rear derailleur for drop-bar bikes, compatible with 50 and 52-tooth cassettes. The X-HORIZON design limits movement to the horizontal axis: it reduces shifting effort and makes ghost shifts impossible.

It works with Apex and Eagle 12-speed mechanical shifters and must be paired with a Eagle chain. Roller Bearing Clutch technology controls chain tension for consistent shifts, while Cage Lock makes wheel changes and chain fitting easier. It is available only in black, so the choice depends on the shifter and chain you already have.

Founded in Chicago in 1987 by Stan Day and a group of cycling enthusiasts, SRAM is still based in the US city today. It makes drivetrains and brakes for road, gravel and mountain bikes. Its story began with a single product: Grip Shift, the shifter that lets riders change gear by twisting the grip.