KCNC Road Oversized Pulley Cage For Shimano Ace SK2257 Ultegra/Dura 6700/6770/6800/6870/7900/7970/9000/9070, Black, KOT32-BK,

- Top Pully: 14T - Bottom Pulley: 16T - Material: 7075 Alloy - OEM package (This item is exactly as pictured and does not include retail package) Content: 1 pc / pack - The system consists of Top 14t & Bottom 16t alloy pulley wheels fitted with low friction bearings and a lightweight cage made from 7075 Alloy. - The Oversized Pully Wheel SYS system reduces friction in the pulleys by 45 % and for your optimized performance. - The system is compatible with Shimano Ultegra/Dura Ace 10s and 11s, electronic and mechanical rear derailleur. - For Road Shimano Ultegra/Dura Ace 6700/6770/6800/6870/7900/7970/9000/9070 use - Top Pully: 14T - Bottom Pulley: 16T - Material: 7075 Alloy - Bearing: Sealed Steel Ball Bearing - Color: Black (as pic. shown) - OEM package (This item is exactly as pictured and does not include retail package) Content: 1 pc / pack