HOLLOWcage® for Shimano 9100 / 8000. The revolutionary mono-plate design is the quietest, best shifting, aerodynamic derailleur cage design created to date. It is a dawn of new era for rear derailleurs. HOLLOWcage ® has a carbon-polymer mono-plate construction with bespoke, oversized, full ceramic bearings and the most advanced silencing pulleys ever created.
Key Highlights Are
It is super silent (over 12dB noise reduction vs stock)
The shifting is as good as with the original Dura Ace cage
It’s more aero than the OEM cage and other oversized cages
It saves more watts than other cages
One of the lightest oversized cages on the market
First mono plate construction of its kind
- Weight: 71G
- Colour: Black
- Compatibility: Shimano Dura Ace 9100 / 9150 , Ultegra 8000 / 8050. Fits up to 32T cassette
- Materials Used: Carbon fiber-polymer matrix, 7075 Aluminium, rubber, ceramics
- In the box: Complete cage, lockring tool, 2x spare xring rubbers











Reviews
There are no reviews yet.