rear derailleur apex 1SRAM's Apex 1 drivetrain provides the gear range and the shifting simplicity to let you simply go where you want. The Apex 1 rear derailleur makes that gearing choice a reality with clean, crisp shifts, thanks to SRAM's X HORIZON geometry and our ROLLER BEARING CLUTCH. Just go: Apex 1 will get you there. Speed (RD): 11s Cable pull Ratio: Exact actuation Cage (RD): Long Max tooth: 42 Color (RD): Black Pulley bearings material: Steel Cage material (RD):
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