CeramicSpeed Ceramic Race Coated Bottom Bracket - BB65 to 50mm (ZED2)

The CeramicSpeed Ceramic Race Coated Bottom Bracket BB65 to 50mm (ZED2) is built for one purpose: to reduce drivetrain friction at the point where it matters most. Designed to mate with the oversized BB65 interface and integrated ZED2 cranksets, this bottom bracket uses Grade 3 Silicon Nitride ceramic balls pressed into hardened steel races — assembled in dust-free clean rooms and verified before leaving the facility.

The ceramic balls at the heart of this bearing are, according to CeramicSpeed, 400% smoother and 128% harder than standard steel balls, and more than 100% smoother than generic ceramic alternatives. That surface quality translates directly into lower rolling resistance and significantly extended bearing life — CeramicSpeed cites three to five times the lifespan of conventional bearings. Less friction under load, less time replacing components. Those are the reasons pro teams have long sought out CeramicSpeed over standard alternatives.

CeramicSpeed Ceramic Race Coated Bottom Bracket — Specs at a Glance

• Interface: BB65 shell to 50mm ZED2 crankset
• Bearing material: Grade 3 Silicon Nitride ceramic balls in hardened steel races
• Assembly: Clean-room assembled and individually inspected
• Bearing life: Designed to last three to five times longer than standard bearings
• SKU: 101378