What Our Gearhead(R) Experts Are Saying: "I've been running a CeramicSpeed BB on my trail bike for over a year now. It spins smoother than any stock setup I've used, even after plenty of wet, muddy rides. The sealed ceramic bearings just keep rolling, and it's been totally silent since day one."Every climb, every sprint, every muddy descent-we ask a lot from our bottom brackets. That's why we trust the CeramicSpeed Bottom Bracket Mountain, designed to handle the abuse of technical terrain while keeping drag to a minimum. Each version is built with hand-polished ceramic bearings sealed behind reinforced dust covers and packed with Long-Life Grease for ultimate durability. Whether our setup calls for a BSA, PF30, T47/73, or BB92 shell, these bottom brackets ensure a perfect fit for Shimano, SRAM DUB, or 30mm crank spindles. The precision-machined alloy cups and ultra-smooth bearings reduce resistance so we can carry speed through rock gardens, power up steep climbs, and ride farther before fatigue sets in. When every watt and every pedal stroke matters, CeramicSpeed keeps us moving fast and running clean.