The oversize Aero pulley system for Shimano Dura Ace 9200 and Ultegra 8100 with integrated stop tower for simple installation and durability. The oversize ceramicspeed pulleys system has proven to be the fastest pulleys system in the world. The CERAMICSPEED OSPW systems are a leading product in the sector, chosen by world champions and the best athletes around the world. This OSPW system has hand-built ceramicspeed bearings installed in each pulley and is supplied with a 4-year warranty as a standard and a warranty when choosing coated bearings. Characterized by a upper 13-teeth pulley and a lower 19-teeth pulley to provide absolute optimization of the rear derailleur. The upper and lower oversized aluminum pulleys are equipped with standard or coated ceramicspeed bearings. Note that although there are visual similarities in the OSPW 9100 series and in the 9200 OSPW series, the settings of the spring voltage, the positioning of the rotation tower of the rotation and the depth of the mounting pin are slightly repositioned and therefore the systems are not slightly repositioned and therefore They are compatible with each other. For 8100 derailleurs, the cage uses the factory derailleur body washer. The 9200 derailleurs will require the new dryer of the derailleur body included.

• Coared version, with coating.
• A complete 13/19 teeth OSPW system.
• Ceramicspeed bearing oil in 15 ml dropper bottle.
• Color: Black.