CyclingCeramic In Cup PF30/T47 Bottom Bracket 30mm/86,5mm

CyclingCeramic bottom brackets are paired with low-friction ceramic bearings that are more durable than standard bearings. The high-quality finish of the bottom brackets enables them to achieve high performance. They have been designed to offer a lightweight assembly and, thanks to the seal design, provide maximum protection.
The extreme hardness of CyclingCeramic balls gives the bearings a lifespan 4 to 5 times longer than standard bearings. The special grease keeps the bearings sealed and protects them from external elements that could affect proper operation.
Silicon nitride balls are used to improve bearing performance. Ceramic balls are lighter, stiffer, smoother, harder and corrosion-resistant. They require less lubrication and have lower thermal expansion than their steel counterparts. The balls are polished continuously for 45 days to make them rounder and smoother. This reduces the contact surface as much as possible.

Details:

• Compatible with a crank spindle 30 mm long / frame internal diameter 47 mm / width 86.5 mm (threaded)
• 7075 aluminium.
• Lifespan 3 to 5 times longer than conventional bearings.
• Ceramic balls are 58% lighter, 121% stronger and 68% harder than steel balls.
• Grade 3 ceramic balls (polished for over 45 days) for virtually zero friction.
• Housing designed, machined and assembled in France at the CyclingCeramic workshop.
• Weight: 80g

Contents:

• Complete housing
• Grease
• Installation instructions
• Stickers