CeramicSpeed OSPW Pulley Wheel System Shimano 9100/8000 Series - Coated Races 3D Printed Titanium Pulley Carbon Cage Ti MFPN=A10068BLK A highly polished underside helps

A highly polished underside helps prevent dirt buildup and aids in cleaning

5 BB Shell Width (mm) 92 Spindle Interface Type Shimano Hollowtech II Defined Color Black

You can see the weight ranges in the chart pictured here (weights are measured from the first 30 ft of the head)

}Hayes Stroker Trail/Carbon Sintered Disc Brake Pads

} Creaking is the worst so it is no wonder that you can see old inner tubes wrapped and zip tied to seatposts and seat tubes

CeramicSpeed OSPW Pulley Wheel System Shimano 9100/8000 Series - Coated Races 3D Printed Titanium Pulley Carbon Cage Ti MFPN=A10068BLK A highly polished underside helpsCeramicSpeed OSPW Pulley Wheel System for Shimano 9100 8000 Series Coated Races 3D Printed Titanium Pulley Carbon Cage Ti. The CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low friction bearings and unique overall design. TECH SPECS Defined Color Silver Drivetrain Speeds 11 Fits Brand Shimano Fits Model Ultegra R8000 SS Fits Model Ultegra R8050 SS GS Fits Model