CeramicSpeed OSPW for Shimano Dura Ace 9250 and Ultegra 8150

CeramicSpeed OSPW for Shimano Dura Ace 9250 and Ultegra 8150   The CeramicSpeed Oversized Pulley Wheel System for Shimano Dura Ace 9200 and Ultegra 8100 with integrated stop tower for simple installation and durability. The CeramicSpeed Oversized Pulley Wheels System has been proven to be the fastest pulley system in the world.CeramicSpeed OSPW Systems are an industry leading product, chosen by World Champions and top athletes around the world.  This CeramicSpeed OSPW System has handbuilt CeramicSpeed Bearings installed in each pulley and comes with a 4 year warranty as standard and a lifetime warranty when choosing coated or SLT bearings.Featuring a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimization of the rear derailleur. The upper and lower oversized aluminum pulley wheels come fitted with either standard or coated CeramicSpeed Bearings. Please note while there are visual similarities in the 9100 Series OSPW and 9200 Series OSPW, the spr