Road Bike CS Big Drumstick Ceramic Bearing Guide Wheel OSPW

Type : Rear Derailleur Origin : Mainland China color : R7000 red/ black, R8000 red/black, SRAM black 12S/ red 12S model : R8000 Material : Ceramic bearing guide wheels OSPW pulley system for R7000/R9100/9150 and R8000 SS/R8050 SS Description: OSPW system for Sm R7000/9100/9150 and 8000 SS/8050 SS This is an updated version of the pulley system for Sm R7000/9100/9150 and 8000 SS/8050 SS. Installation instructions for this and older versions can be found in our support section. The OSPW system of Sm 9100/9150 and 8000 SS/8050 SS is selected by many cycling teams and triathlons. It is equipped with a 13-tooth upper pulley and a 19-tooth lower pulley to provide the rear chain puller. The upper and lower large aluminum pulleys are equipped with any standard bearing. Technical data: The overall energy saving of the OSPW system of Sm 9100/9150/8000 reaches 30, which in some cases is more than the inventory setting. The service life of the large pulley is 3-5 times that of the standard pulley commonly used in the market. The sm 9100/9150 and 8000 SS/8050 SS OSPW systems are compatible with up to 32 tooth flywheels of Dura Ace and Ultra transmissions. ***Please note that the OSPW system of 9100/9150 and 8000 SS/8050 SS is not compatible with the Ultra 8000-GS or 8050-GS (medium cage) transmission, nor with the Ultra RD RX800 and RX805 equipped with clutch. Package: 1 set