The Ceramicspeed Shimano R8000/9100 Cassette Pulley Kit has proven to be the world’s fastest pulley system, providing energy savings of 2.4 watts or more compared to standard Shimano systems.
It features a 13-tooth upper pulley and a 19-tooth lower pulley to ensure optimal rear derailleur shifting performance. The oversized aluminum upper and lower pulleys are equipped with standard Ceramicspeed bearings.
In the box:
Complete 13-tooth/19-tooth OSPW system
Ceramicspeed oil for pulley bearings, 15 ml dropper bottle.
Please note that although there are design similarities, this OSPW is not compatible with Shimano 9200 or 8100 series 12-speed front derailleurs.
