HOLLOWcage® for eTap AXS Red & Force 12spd derailleurs finally makes your AXS drivetrain whisper quiet. Our revolutionary mono-plate oversized pulley wheel (in short OSPW) is the quietest and best shifting oversized derailleur cage for eTap AXS created to date. HOLLOWcage ® OSPW has a carbon-polymer mono-plate construction with bespoke, oversized, full ceramic bearings and the most advanced silencing pulleys ever made.
Sram eTap AXS is known to be louder than other drivetrains. Our HOLLOWcage® with Silent " Xring Pulley™ " completely eliminates this problem allowing you to enjoy the ride.
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