KCNC Road Oversized Pulley CageFor Dura-Ace/Ultegra R8000/R9100,BK, SK2260

• Top Pulley :12T sealed bearing
• Bottom Pulley :16T sealed bearing
• Cage Material : 7075 Alloy
• Weight : approx. 64g
• OEM package (This item is exactly as pictured and does not include retail package)

The system is compatible with Shimano Ultegra r8000 r8050 / Dura Ace r9100 r9150 11s rear derailleur. - KCNC Road Bicycle Bike Oversized Pulley Wheel Cage - KCNC Wheel Bearings reduce friction, which gives you a lower rolling resistance. - Upgrading your wheel bearings to oversized pulley will maximize the return you get from your energy. - KCNC oversized pulley cage reduce friction and increases resistance to contamination and corrosion. - Coated bearings prolong the lifetime even further. - The system consists of Top 12t & Bottom 16t alloy pulley wheels fitted with low friction bearings and a lightweight cage made from 7075 Alloy. - The Oversized Pully Wheel System reduces friction in the pulleys by 45 % and for your optimised performance. - Top Pulley :12T sealed bearing - Bottom Pulley :16T sealed bearing - Cage Material : 7075 Alloy - Weight : approx. 64g - Pulley color: Black(as pic. shown) Content: 1 pc / pack (without retail box)