CeramicSpeed Ceramic Race Coated Bottom Bracket Bearing Kit - BB86 to 25mm (Campy UltraTorque)

The CeramicSpeed Ceramic Race Coated Bottom Bracket Bearing Kit BB86 to 25mm (Campy UltraTorque) solves a specific fitment problem cleanly: it mates a BB86 press-fit shell — 86.5mm wide, 41mm internal diameter — to the 25mm thru-axle spindle found on Campagnolo UltraTorque cranks. If you're running that drivetrain in a frame with a BB86 shell, this is the bearing kit that makes it work properly.

The bearings themselves use Grade 3 Silicon Nitride ceramic balls pressed into hardened steel races — a combination that delivers measurably lower rolling resistance than standard steel bearings while outlasting them in day-to-day use. The Race Coated designation refers to the treated bearing races, designed to reduce friction further and resist the wear that comes with sustained road mileage. Less resistance at the bottom bracket means more of your power reaches the rear wheel, and fewer service intervals over the life of the bearing.

CeramicSpeed Ceramic Race Coated Bottom Bracket Specs at a Glance

• Bottom bracket standard: BB86 (86.5mm shell width, 41mm internal diameter)
• Spindle compatibility: 25mm — Campagnolo UltraTorque
• Ball material: Grade 3 Silicon Nitride ceramic
• Race treatment: Coated steel races for reduced friction and improved durability
• Intended use: Road