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CeramicSpeed PF4630 OSBB Coated Bottom Bracket

MSP £319.00 Save 12%


PF4630 OSBB Coated Bottom Bracket

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Product ID: 687191

The PF4630 Coated Bottom Bracket from CeramicSpeed is the perfect addition to your OSBB frameset to run BB30 cranks.

The 3-micron thick metallic coating on the hardened-steel races provides a virtually frictionless interface for your cranks, with astonishing longevity.

CeramicSpeed PF4630 OSBB Coated Bottom Bracket

Install a CeramicSpeed PF4630 OSBB Coated Bottom Bracket on your compatible Specialized frameset, and enjoy running BB30 cranks with more efficiency and durability than ever before. This is a premium upgrade that boasts big performance benefits like smoother, quieter operation and a seriously reduced frictional drag coefficient.

The coating applied to the hardened-steel races reduces drag by 50% compared to the standard CeramicSpeed version and ensures even longer-lasting performance by boosting the life of the bottom bracket by 60%.

This bottom bracket is compatible with OSBB or 46mm PressFit framesets and BB30 chainsets with a 30mm diameter spindle.


  • Two cups with bearings installed
  • Two 3mm spacers
  • Two 1mm spacers
  • Two 0.5mm spacers
  • Two dust covers
  • Wave washer
  • Telescoping spacer tube
  • 10ml syringe of CeramicSpeed All Round Grease
  • Sticker Sheet


  • Coated ceramic bearings are harder and smoother for even less friction and even longer-lasting performance
  • Contamination resistant BB design
  • Ultra-efficient and long-lasting
  • Integrated dust cover
  • Hand-built bearings carry the load from crank to frame with un-paralleled durability and efficiency
  • Frame: OSBB
  • Opening diameter: 46mm
  • Axle: BB30
  • Shell width: 61mm

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