Description
The oversized pulley system for Shimano Dura Ace 9200 and Ultegra 8100 with integrated stop tower for easy installation and durability. The CeramicSpeed oversized pulley system has been proven to be the fastest pulley system in the world. The CeramicSpeed OSP sistemi systems are an industry leading product, chosen by world champions and top athletes around the world. This OSP system has hand-built CeramicSpeed bearings installed in each pulley and comes with a 4 year warranty as standard and a lifetime warranty when choosing coated bearings. Featuring a 13-tooth top pulley and a 19-tooth bottom pulley for absolute rear derailleur optimization. The oversized aluminum upper and lower pulleys come with standard or coated CeramicSpeed bearings. Note that although there are visual similarities in the OSP 9100 series and the OSP 9200 series the spring tension settings, the placement of the rotation stop tower and the depth of the mounting pin are slightly repositioned, so the systems are not compatible with each other. For 8100 derailleurs, the cage uses a factory derailleur body washer. The 9200 derailleurs will require the new included derailleur body washer.
