BB92 Alpha, MTB, Shimano, Black

- Save watts and ride faster with guaranteed lowest friction, optimized power transfer, and longest product lifetime\n- Covered by a lifetime warranty \n- Developed to improve upon original Ceramic Speed BB, isolating all elements that make up the design. Each part looked at in detail as a potential for improvement\n- 10% lighter \n- DUB specific cups for right setup with less spacers\n- Stainless steel races for longer durability\n- Refined light contact seals for 500% increased contamination protection without additional drag\n- Improved dustcover design for increased longevity and reduced maintenance\n- BB92 bottom bracket standard \n- MTB: Longlife Grease