CERAMIC SPEED BB90 crankshaft bearing for TREK / Shimano 24 mm axle

Upgrade your bike with the CeramicSpeed BB90 Bottom Bracket for Trek and Shimano. Thanks to ceramic ball bearings combined with steel raceways, you get ultra-low friction and smoother crank rotation that allows more of your power to be transferred to the chain instead of being lost in drag. The result is a feeling of higher efficiency and better response in every pedal stroke. The bearings are designed for long life and resistance to both wear and corrosion. They are also serviceable, allowing you to maintain and extend the life of both crank bearings and crank arms. For added peace of mind, the product comes with a four-year warranty. CeramicSpeed BB90 is perfectly matched to Trek's standard BB90 with a 90.5 mm shell and works with Shimano's 24 mm spindles and cranks. It is available in two versions: Standard/Black which offers high performance at a competitive price, and Coated/Black which has an extra coating for even lower friction and longer durability. The package includes two BB90 bearings, two sealing rings, two dust covers with integrated spacers, All Round grease, a decal and mounting instructions.