Cervélo created their own bb standard, BBright. Found on most of their frames, save the P5, it is asymmetric, has a width of 79mm and a diameter of 42mm. To make Campagnolo Over-Torque cranks compatible with this shell, you will need the BBright Campag OT Bottom Bracket by CeramicSpeed.The bottom bracket comes with CeramicSpeed Standard or Coated Bearings pre-installed. Both versions feature super smooth and round CeramicSpeed balls housed in hardened-steel races. The Coated version has a metallic coating on the races, resulting in even greater smoothness, reduced drag, and increased longevity.Included in the box:- 1 bottom bracket with bearings installed- 2 dust covers- 2 1mm spacers- 2 0.5mm spacers- 10ml syringe of CeramicSpeed All Round Grease- Sticker sheetCampy's Over-Torque thru-axle spindle has a diameter of 30mm, which fits perfectly inside the 42mm diameter bottom bracket shell.CeramicSpeed Standard Bearings offer a significant reduction in frictional drag, with only 0.3-0.4 watts per set. This represents a 75% decrease compared to standard bottom brackets. These remarkable bearings are made with balls that are 400% smoother, 128% harder, and 58% lighter than typical steel balls, resulting in a lifespan at least three times longer than other bearings.Coated Bearings provide an even greater performance advantage, offering a 60% longer lifespan and a 50% reduction in drag.It's worth noting that changing the grease can impact performance. The bottom bracket comes with All Round Grease installed, but you have the option to switch to TT and Track Grease for lower drag in time trial and track cycling, or LongLife Grease for improved durability in harsh conditions (although this may slightly increase drag during riding).Upgrade your bike with the BBright Campag OT Bottom Bracket by CeramicSpeed and experience the difference in performance and longevity.