The absoluteBLACK's HOLLOWcage® for SRAM eTap AXS RED and Force 12-speed derailleurs makes the AXS drivetrain whisper quiet. It features a carbon-polymer mono-plate construction with bespoke, oversized, full ceramic bearings and one of the most advanced silencing pulleys ever made.

• Designed for use with SRAM RED and Force AXS drivetrains
• The Silent Xring Pulley dampens the chain impact on the guide pulley teeth, eliminating the engagement noise
• Incredibly silent (over 12dB noise reduction vs stock)
• HOLLOWcage uses full ceramic bearings (Silicon Nitride ceramic balls and Zirconia Oxide ceramic races) that make the guide pulleys incredibly stiff for greater shifting precision
• One of the lightest oversized cages on the market (69g)
• Works with 10-28t, 10-33t, and 10-36t cassettes
• Not compatible with SRAM XPLR or 11-speed RED/Force
• ONLY works with AXS flat top chain