Campagnolo ProTech T47A 77 mm gravel bike bottom bracket

If you’re looking for a bottom bracket for gravel riding, this Campagnolo ProTech T47A 77 mm is for you. It features ProTech technology, comprising a patented external seal that protects the ball bearings from water, mud or sand ingress. A waterproof central ring made of glass-fibre-reinforced polyamide also helps prevent contamination of the interior.

The oversized external stainless steel bearings are mounted on the two Ultra-Torque axle halves, which are securely attached to the cranks. This ensures optimal performance and easy maintenance. Compatible with the majority of frames on the market thanks to a comprehensive range of threaded and PressFit cups, this bottom bracket guarantees optimal performance in all conditions and on all routes, providing the best possible support for all your gravel cycling adventures.

Technical specifications:

- ProTech technology
- Patented external seal
- Sealed polyamide centre ring
- Oversized external stainless steel bearings
- Compatibility with most frames on the market
- Optimal performance in all conditions