The Campagnolo Pro-Tech Bottom Bracket pairs a patented external sealing ring with an internal sleeve seal, creating two layers of protection against water, mud and grit. Instead of mounting to the bottom bracket cups, its external stainless steel bearings attach directly to the crank arms as a single unit, allowing a larger bearing diameter and simpler access for maintenance.

Central tube construction uses fibreglass-charged polyamide for a durable, resilient core that links the two bearing assemblies. This Pro-Tech system is offered across threaded and pressfit standards, including BSA, ITA, BB86, BB30, BB386, PF30, BB Right and T47, though it pairs exclusively with Campagnolo Ekar Pro-Tech cranksets; bearings are sold separately.

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