Since the item is ordered from a warehouse in Taiwan, it usually takes about 6-10 days for delivery, not including Saturdays and Sundays. 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. Almost have the same efficiency ratio with Ceramicspeed . The system is compatible with Ultegra r8000 /Dura Ace r9100 11s rear derailleur. Top Pulley :12T sealed bearing Bottom Pulley :16T sealed bearing Pulley color:Black / Red / Gold available Cage Material : 7075 Alloy Weight : approx.60 grams For Road Ultegra R8000/ R8050 , Dura Ace R9100 / R9150 use


Color: ‎Gold
Battery included or built-in: ‎No
Style: ‎Pulley
Packing size: ‎17.6 x 11.3 x 5.5 cm; 140 g