Absolute Black 8100 Hollowcage OSPW (Shimano)

HOLLOWcage® V2 for Shimano Ultegra 8100 12spd. Our revolutionary mono-plate oversized pulley wheel (in short OSPW) design is the quietest and best shifting, oversized derailleur cage for Shimano 12spd 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.

What’s new with V2

We devoted countless hours to sourcing advanced materials, all while refining the very essence of the mono-plate construction. The new mono-plate also boasts a glossy finish that highlights the carbon fiber construction. It is now made from the very same material as used by SRAM in the RED eTap AXS derailleur cage. Our ceramic bearings have been rigorously tested and independently certified using X-ray diffraction by Lucideon Ltd, a UKAS-accredited authority in ceramics and material science.