The Campagnolo Centaur BB5-CE1I bottom bracket embodies Italian craftsmanship in the service of road drivetrain. With its Italian 70 mm threading and 111 mm spindle, this sealed cartridge bottom bracket offers reliability and performance for Campagnolo double and triple cranksets. Elegant black finish, refined technical design: this component is the choice of purists committed to original quality and perfect compatibility with Campagnolo ISO square taper cranksets.

Technical Highlights

• 3 sealed bearing system: asymmetric design with two cartridges on the drive side and one on the opposite side, ensuring smooth rotation and exceptional longevity even under high load.
• Heat-treated hollow steel spindle: designed with an oversized and tapered internal profile for maximum stiffness while optimizing weight (233 g).
• Machined 7000 series aluminum cups: lightness, machining precision and corrosion resistance, typical of Campagnolo production.
• Unique Campagnolo ISO taper: optimized tolerances and geometries for perfect coupling with Campagnolo cranks and impeccable chainline.

Compatibility

• Frame: Italian threading (ITA) 36 x 24 tpi, 70 mm bottom bracket shell width.
• Compatible cranksets: Centaur 9/10 speed, Veloce 9/10 speed, Mirage 9 speed, Xenon 9 speed (double and triple), as well as Athena 1993 and later, Record and Chorus pre-1995 (square taper versions).
• Double configuration: Ø 28.6 / 32 / 35 mm seat tubes (43.5 mm chainline).
• Triple configuration: Ø 28.6 mm seat tubes (45 mm chainline); for Ø 32 or 35 mm seat tubes in triple, prefer the 115.5 mm spindle.
• Warning: this bottom bracket uses the specific Campagnolo ISO taper and is not compatible with Shimano cranksets.

Campagnolo Manufacturing and Quality

Manufactured in Italy at Campagnolo's Vicenza factories, this bottom bracket benefits from the rigorous quality control and technical expertise that have built the brand's worldwide reputation. Every step—design, engineering, machining—is carried out in-house to guarantee the performance, durability and precision expected by demanding cyclists. An iconic component to preserve the authenticity and feel of a Campagnolo road drivetrain.