DER SRAM RR APEX EAGLE D1 12s 52T MAX BK

The Apex Eagle rear derailleur quietly and quickly shifts across 12-speed Eagle cassettes, while 1x-specific chain retention technology keeps the chain where it needs to be

X-Horizon straight parallelogram design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force

Cage Lock technology makes for fast wheel changes or chain installation

Roller Bearing Clutch controls chain tension for consistent shifting

Works with 12-speed mechanical Apex and Eagle shifters

Compatible with 50T and 52T Eagle cassettes

Use with Eagle chain