OSPW Ceramic Speed DA9100 & ULT8000 - Black Non Coated

OSPW Ceramic Speed DA9100 amp; ULT8000 - Black Non Coated Product description This is an updated version of the Oversized Pulley Wheel System for Shimano 9100/9150 and 8000 SS/8050 SS . The CeramicSpeed Oversized Pulley Wheels System has been proven to be the fastest pulley system in the world, providing energy savings starting from 2.4 watts over standard Shimano systems. Featuring a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimisation of the rear derailleur. The upper and lower oversized aluminium pulley wheels come fitted with either standard or coated CeramicSpeed Bearings. In The Box -. Complete 13-tooth/19-tooth OSPW System -. CeramicSpeed Oil for Pulley Wheel Bearings, 15ml. dropper bottle Perbedaan Coated dan non Coated bisa check Y0utube Channel Charlie Bike Shop https://www.youtube.com/watch?v=DWQtGs_bGuA amp;t=20s