CeramicSpeed OSPW System Shimano Dura Ace 9250/Ultegra 8150 - Red is a high-performance upgrade for your road bike. The system features oversized pulleys with ceramic bearings, providing a lifespan 3-5 times longer than standard pulleys. The Carbon polyamide cage and 13/19 tooth pulleys are compatible with Shimano Dura Ace 9250/Ultegra 8150 and offer an overall energy savings of 30%-60%. The OSPW system also includes an integrated stop tower for easy installation and durability. With CeramicSpeed ​​oil and a 15ml dropper bottle included, you'll have everything you need to improve your ride. This 12 speed system is designed to improve your cycling performance, making it perfect for any road discipline.Take your cycling to the next level with the CeramicSpeed OSPW System Shimano Dura Ace 9250/Ultegra 8150 - Red. This top-of-the-line upgrade will increase your speed while decreasing your overall energy output. Its high-quality construction and materials will make sure your cycling experience is top notch. Componentes, Cambios, Cambiostraseros.