Campagnolo Ekar T47 Bottom BracketTough, smooth running and compatible will all T47 road/gravel bike bottom bracket shells, Campagnolo has packed some of its best technologies into the Ekar bottom bracket to ensure it’s ready for your off-road pursuits, over all terrains and in all weather conditions.Fully Sealed Gravel Bike Bottom BracketThe Ekar bottom bracket is designed specifically for gravel and all-road riding. Featuring a patented ProTech system with an external sealing ring and internal sleeve protects from water, grit and dirt ingress. The oversized, protected external stainless steel bearings attach directly to crank arms for a smooth, fluid performance.Features: Material: Aluminium Use: Road Compatibility: T47 bottom bracket shells Crankset Compatibility: Campagnolo Ultra-Torque cranksets Bearing: Included ProTech system seals against dirt and moisture Oversized, protected external bearings for smoothness Designed specifically for Ekar 1×13 groupsets Suitable for Gravel and All-Road riding Full compatibility with all Road T47 bottom bracket shells Part Number: 68mm: CPB028H; 86.5mm: CPB028J Weight: 50gTechnologies: Pro-Tech: Patented dual-sealing ProTech technology securely connects the two semi-axles inside the bottom bracket and protects the BB bearings from ingress of water and mud, providing longevity of high performance, even in the worst riding conditions. A gravel-orientated development from Campagnolo’s innovative and proven Ultra-Torque technology, the ProTech system’s central Hirth joint features self-centring and self-aligning frontal teeth located in the middle of the crank where the ends of the integrated semi-axles meet. Buy Campagnolo Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.