**Unlock Unmatched Speed with CeramicSpeed’s Oversized Pulley Wheels System**
Experience the pinnacle of cycling efficiency with the **CeramicSpeed Oversized Pulley Wheels System**. Engineered to be the world’s fastest, this revolutionary system delivers unparalleled energy savings, reducing drag by an impressive **2.4 watts** compared to standard Shimano setups.
Designed for absolute optimization, the system features a **13-tooth upper pulley wheel** and a **19-tooth lower pulley wheel**, ensuring smooth, responsive shifts and maximum power transfer. Perfectly compatible with Shimano 9100/8000 series derailleurs, it supports cassettes up to **32 teeth**, making it an ideal upgrade for both Dura Ace and Ultegra models.
**Key Features:**
– **Superior Efficiency:** Save up to 2.4 watts over standard Shimano systems.
– **Precision Engineering:**
