Campagnolo ProTech bottom bracket cups

The Campagnolo T 47 bottom bracket cups for fitting Campagnolo Ekarand Super Record WRL ProTech cranksets to frames with a 34.8 mm bottom bracket thread and a 68 mm bottom bracket shell width.

The ball bearings themselves are included with the Campagnolo cranksets. Due to the wider design required for the new ProTech seals, Campagnolo ProTech bottom brackets are not compatible with Ultra Torque road bike cranksets

Campagnolo ProTech:

The patented ProTech bottom bracket technology with double seals firmly connects the two axle halves within the bottom bracket and protects the bearings from the ingress of water and mud, ensuring high performance and durability even under the worst conditions. The innovative and proven Ultra-Torque technology has been further developed for gravel use. The Hirth spline of the ProTech system features self-centring and self-aligning teeth located at the centre of the crank, where the ends of the integrated axle halves meet.

The oversized stainless steel bearing located on the crank arm outside the bottom bracket cups offers maximum stiffness, smoothness and strength thanks to the increased diameter of the crank axles.

Campagnolo BSA ProTech bottom brackets:

• Thread 34.8 mm
• Bottom bracket shell width 68 mm
• Compatible with Campagnolo ProTech cranks
• Weight 50 grams (manufacturer’s specification)

Herstellerinformation: Campagnolo, Via della Chimica 4, 36100 Vicenza, Italy, https://www.campagnolo.com