Cerv‚lo created their own bb standard, BBright. Found on most of their frames, save the P5, it is asymmetric, has a 79mm width and 42mm diameter. To get Campagnolo Over-Torque cranks to work with the shell, you need this bottom bracket and bearings.
CeramicSpeed Standard or Coated Bearings come installed. Super smooth, super round CeramicSpeed balls contained in hardened-steel races are found on both versions. The Coated version has a metallic coating laid onto the races, making it even smoother and harder, resulting in lower drag and longer life.
In The Box
Campy's Over-Torque thru-axle spindle is 30mm in diameter, which works great inside the 42mm diameter bottom bracket shell.
CeramicSpeed Standard Bearings typically have frictional drag of 0.3-0.4 watts per set. That's in the range of a 75% drag reduction compared to standard bottom brackets. That's thanks to balls that are 400% smoother, 128% harder, and 58% lighter than typical steel balls. The bearings last at least three times longer than other bearings.
Coated Bearings see another big performance benefit. 60% longer life for these bearings, and a 50% drag reduction.
Changing the grease changes performance. All Round Grease comes installed, but can be changed for lower drag TT and Track Grease, or higher durability LongLife Grease, which adds a bit of drag but stays in when riding through messy conditions.
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