Campagnolo Ultra Ceramic Bearings Set (USB) QCK_TECH

The new Campagnolo bottom bracket has been designed to minimise friction and transform every watt into pure speed. The Ultra Ceramic bearings with silicon nitride balls offer uncompromising smoothness, durability, and performance.

The bottom bracket is the hidden heart of every bicycle: invisible from the outside, but essential for turning every watt into pure speed. With this project, Campagnolo has redesigned every detail to minimise friction and maximise smoothness.

The ULTRA Ceramic bearings are at the heart of this innovation. They are equipped with silicon nitride balls selected according to aerospace standards and offer perfect roundness, total absence of impurities, and a flawless surface. The result is optimal, longer-lasting, and uncompromising glide.

The high-performance resin internal cage, designed to reduce friction and noise between the balls, also contributes to performance. Furthermore, the double seal system, internal and external, protects the bearings from external agents, ensuring consistent cleanliness and smoothness over time.

This evolution of the Campagnolo system with ceramic bearings integrated into the crankset axis has not only improved performance but also reduced weight: the BSA version weighs just 49g, i.e. 3g less than the standard version. With the new bottom bracket, every pedal stroke becomes smoother, quieter, and more efficient: an invisible technology, but one that makes a real difference in the saddle.

• Bottom bracket: the hidden heart of the bike, these ceramic bearings have been designed to reduce friction and increase smoothness
• ULTRA Ceramic bearings with silicon nitride balls selected according to aerospace standards for maximum roundness, surface perfection and integrity, and optimal gliding
•  High-performance resin inner cage: reduces friction and noise between the balls.
• Double seal system: internal and external protection for greater cleanliness and smoothness over time
• Maximum roundness, surface perfection and integrity, and optimal gliding
• Reduced weight: only 49g in the BSA version (3g less than in the standard version)
• Benefits: smoother, quieter, and more efficient pedalling