Engineered for unparalleled drivetrain efficiency and ultimate durability, the CeramicSpeed PF4630 bottom bracket optimizes every pedal stroke for performance frames.

The CeramicSpeed PF4630 bottom bracket is a high-performance upgrade meticulously designed to seamlessly integrate 30mm spindle cranksets into frames with a PF46 (e.g., BB386EVO, PF30, OSBB) press-fit shell. Featuring CeramicSpeed’s ultra-low friction bearings, it dramatically reduces drag, ensuring smoother power transfer and measurable watt savings. Its robust construction provides exceptional longevity and reliability, enhancing pedaling efficiency and reducing maintenance. This bottom bracket is the definitive choice for riders seeking to unlock the full performance potential of their bike.

• Compatible with PF46mm shell frames (BB386EVO, PF30, OSBB) and 30mm spindle cranksets.
• Features CeramicSpeed bearings for industry-leading low friction.
• Optimizes power transfer and contributes to measurable watt savings.
• Robust construction ensures exceptional durability and long lifespan.
• Designed for smooth, quiet, and efficient pedaling performance.