The CeramicSpeed Sram Dub BB Right bottom bracket in detail:
high-performance bearings with special 3rd degree silicon nitride ceramic balls (highest possible degree for ceramic bearings)
CeramicSpeed balls: 15% harder, 100% smoother and 99% more resistant than commercially available ceramic balls
reinforced polyamide ball bearing cage, hardened steel bearing ring with polished channel
reduced friction: smoother operation, better performance
handcrafted in Denmark
Housing diameter: 46 mm
Housing width: 79 mm
Color:
Red
FINISH: Standard

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