Shimano SM-BBR60 (BSA) Ultegra Bottom Bracket

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The most significant [advantage] is a stiffer frame,” says Trek mountain bike product manager John Riley. “Secondarily, BB90/95 offers a lighter overall solution by replacing traditional alloy bearing cups with integrated carbon bearing bores. It also provides a simplified installation process.” Trek introduced the proprietary BB90 standard in 2007 on the revamped Madone and soon followed with the mountain bike-specific BB95. With the PressFit 30, they’re using the same technology with the larger bearings and the same technology with the bearings living inside the frame, but they’re utilizing the nylon to their advantage where you have a more realistic tolerance.”

Collado MC, Meriluoto J, Salminen S (2007) Adhesion and aggregation properties of probiotic and pathogen strains. Eur Food Res Technol 226(5):1065–1073. https://doi.org/10.1007/s00217-007-0632-x Cranksets with 24 mm spindle diameter are not all the same! SRAM and some other manufacturers make spindles that are 24 mm wide at one end, and 22 mm wide on the other, so the correct matching BB needs to be acquired.

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Pros: Vast crankset compatibility, open standard, threaded design easy to service and prevent from creaking, same dimensions as PF30 Cervélo introduced the new BBright system on the R5ca, and while it offers some sound engineering advantages, other companies have been slow to adopt it Immediate Media I think it’s more about the simplicity of the manufacturing process,” says Drew Guldalian of Pennsylvania-based custom builder Engin Cycles. “Boring out a [standard] BB30 is not impossible, but in my opinion it’s an unrealistic task from a manufacturer’s standpoint that needs to do something to make money. Mezzapelle R, Bianchi ME, Crippa MP (2021) Immunogenic cell death and immunogenic surrender: related but distinct mechanisms of immune surveillance. Cell Death Dis 12(10):869. https://doi.org/10.1038/s41419-021-04178-6

Ma C, Han M, Heinrich B et al (2018) Gut microbiome-mediated bile acid metabolism regulates liver cancer via NKT cells. Science 360(6391). https://doi.org/10.1126/science.aan5931 Crank compatibility is another BB386 EVO strongpoint. Despite the bulbous dimensions, the shell will accept most modern crankset fitments save for dedicated BB30/PF30 and BBRight designs. BB386 EVO and BB392 EVO, introduced in 2011, take the oversized principle to extremes. The bearings have the same 86/92mm spacing, width-wise, as conventional threaded external BB, BB90/95, and PF86/92 formats, but it uses BB/PF30’s bigger 30mm diameter spindle. If not, would the Chain Reaction Ultegra Groupset Builder with the "English 68mm" option fit the Dengfu FM098 frame with the "English BB" option (supposing this is actually a separate option from the "BB30" on the Dengfu FM098)? Cons: Metal-on-metal interfaces can be prone to creaking; requires a separate bearing puller and press for service; requires high manufacturing tolerances; bearing seats can’t easily be faced post-manufacturing; not all BB30 cranks will fithttp://www.chainreactioncycles.com/us/en/shimano-ultegra-6800-11-speed-groupset/rp-prod110818?utm_campaign=bazaarvoice&utm_medium=Default&utm_source=AskAndAnswer&utm_content=Default