The CeramicSpeed BB Alpha Bottom Bracket for BB86 Shimano Road is engineered for riders who demand durability and uncompromising efficiency. Designed for BB86 pressfit frames with a 41mm bore and 86mm width, it pairs perfectly with 24mm axle cranksets from Shimano and compatible brands. Ultra-Low Friction Ceramic Performance: Hardened stainless-steel races are hand-built with Grade 3 Silicon Nitride ceramic balls to deliver exceptionally smooth rotation. This minimizes friction and maximizes power transfer, helping you convert every watt into forward speed. Advanced Moisture & Bearing Protection: Custom-engineered seals and precision dust covers provide up to 500% better moisture protection compared to previous generations. The corrosion-resistant design keeps contaminants out, ensuring consistent performance in all riding conditions. Lighter Design, Faster Installation: A simplified spacer tube system and lighter cups reduce overall weight by 10% while enabling quicker and more precise installation. The serviceable construction makes long-term maintenance straightforward and reliable. Backed by a lifetime warranty, the CeramicSpeed BB Alpha Bottom Bracket for BB86 Shimano Road delivers elite-level performance that lasts season after season.