Increases the gear-shifting efficiency by reducing the weight pressure applied to the rear derailleur. Total Weight: 56g , Including washer.
Fit with Shimano Dura Ace 7900,7970-di2,9000&9070 -di2 ; Ultegra 6700,6770 -di2 , 6800&6870 -di2. Won't fit Shimano Dura Ace R9100/9150, Ultegra R8000/R8050, 105 (5600,5700,5701,5800) or Tiagra (4600&4700). Fit with 36t Cassette Cog max, it will be a good choice for 1 11 Roadbike / CycloCross Setup. The item "J&L Carbon+Ceramic OSPW-Derailleur Big Pulley-On-Shimano Dura Ace/Ultegra-di2" is in sale since Thursday, July 20, 2017.This item is in the category "Sporting Goods\Cycling\Bike Components & Parts\Rear Derailleurs". The seller is "liukang1985" and is located in Hangzhou, XiHu Qu. This item can be shipped worldwide.