absoluteBLACK HOLLOWcage V2 Shimano Ultegra 8100/8150 - Black

absoluteBLACK HOLLOWcage V2 for Shimano Ultegra 8100/8150

The absoluteBLACK HOLLOWcage V2 is an oversized rear derailleur cage designed specifically for Shimano Ultegra 8100/8150 12-speed rear derailleurs.

The system combines a carbon-polymer mono-plate construction, oversized pulley wheels and full ceramic bearings. It uses a 12T upper pulley and 18T lower pulley and is compatible with cassettes up to 34T.

• ⚙️ Designed for Shimano Ultegra 8100/8150 12-speed
• 🛞 OSPW oversized pulley wheel system
• 🪶 Carbon-polymer mono-plate construction
• ⚙️ Full ceramic bearings
• 🔇 Xring Pulley system designed to reduce drivetrain noise
• 🚴 Compatible with cassettes up to 34T
• ⚫ Black finish

⚙️ Designed for Shimano Ultegra 8100/8150

The HOLLOWcage V2 is designed for the Shimano Ultegra 8150 12-speed rear derailleur and is specific to this drivetrain configuration.

Compatibility with the rear derailleur and drivetrain configuration should be checked before installation.

🛞 OSPW Oversized Pulley System

The HOLLOWcage V2 uses an OSPW (Oversized Pulley Wheel) system with enlarged derailleur pulley wheels.

The configuration features a 12-tooth upper pulley and an 18-tooth lower pulley.

🪶 Carbon-Polymer Construction

The cage is made using a carbon-polymer matrix and features a mono-plate construction.

absoluteBLACK uses an injection-moulding process designed to optimise the orientation of the carbon fibres during production.

⚙️ Full Ceramic Bearings

The pulley wheels feature full ceramic bearings, using ceramic races and ceramic balls.

The system uses zirconia oxide ceramic races and silicon nitride ceramic balls, combined with polymer cages and seals.

🔇 Xring Pulley System

The HOLLOWcage V2 incorporates the Xring Pulley system developed by absoluteBLACK to reduce the noise generated when the chain engages with the pulley teeth.

The rubber ring helps absorb the impact of the chain against the pulley teeth during drivetrain operation.

🚴 Compatibility up to 34T

The absoluteBLACK HOLLOWcage V2 is compatible with cassettes featuring a largest sprocket of up to 34 teeth.

Correct installation and appropriate chain length are required for proper operation of the system.

📦 What's Included

The package includes the complete HOLLOWcage and the dedicated lockring tool.

📋 Technical Features

🏁 Why Choose the absoluteBLACK HOLLOWcage V2?

The absoluteBLACK HOLLOWcage V2 is designed for riders looking to replace the standard rear derailleur cage on a Shimano Ultegra 8100/8150 12-speed drivetrain with an oversized OSPW system.

The combination of carbon-polymer construction, oversized pulley wheels, full ceramic bearings and the Xring Pulley system provides a high-end component designed to optimise drivetrain operation and reduce chain noise.