Compatible with SRAM® AXS E1 and FORCE AXS E1 road rear derailleurs.
Features a 12T upper pulley and an 18T lower pulley, effectively improving chain engagement and overall drivetrain smoothness.

Compatible with SHIMANO® RD-R9250 rear derailleur (12-speed Di2 electronic shifting), SHIMANO® DURA-ACE series.

Compatible with SHIMANO® RD-R8150 rear derailleur (12-speed Di2 electronic shifting), SHIMANO® ULTEGRA series.

Compatible with SHIMANO® RD-R7150 rear derailleur (12-speed Di2 electronic shifting) and RD-R7100 (12-speed mechanical shifting), SHIMANO® 105 series.

Compatible with SRAM® AXS E1 and FORCE AXS E1 road rear derailleurs.
Features a 12T upper pulley and an 18T lower pulley, effectively improving chain engagement and overall drivetrain smoothness.

Upper12T/Lower16T derailleur cage for SRAM® RED AXS/FORCE/RIVAL 12 speed system.

Compatible with SRAM RED AXS E1 and FORCE AXS E1 road bike rear derailleurs. The 12T upper pulley wheel and 18T lower pulley wheel effectively increase the smoothness of the chain running across the pulley wheels.