The Campagnolo PRO-TECH Bottom Bracket Cups T47x86 (OC21-PRT4786) are designed with Pro-Tech™ technology to ensure superior performance and protection. The patented external sealing gasket protects the ball bearings from the damaging entry of water, mud, and sand, guaranteeing consistent performance in all conditions. Additionally, the watertight central sleeve made of fiberglass-reinforced polyamide prevents contamination from the inside, ensuring durability and long-term reliability.

These T47x86 bottom bracket cups are paired with oversized external stainless steel bearings, which are press-fitted onto the two Ultra-Torque™ half-axles, securely fixed to the cranks. Thanks to the Pro-Tech™ sealing system, your bottom bracket remains optimally sealed, regardless of where or how you ride.

The Ekar bottom bracket system offers wide compatibility with both threaded and PressFit cups, making this bottom bracket the ideal choice for cyclists seeking a high-performance, versatile solution for their frames.