The CeramicSpeed Ceramic Race Bottom Bracket OSBB to 24 mm (Shimano) is a precision upgrade that allows Shimano-style 24 mm spindle cranksets to be installed in Specialized OSBB (outboard press-fit) frame systems. Designed for smooth, long-lasting performance, it uses high-quality ceramic bearings set into hardened-steel races.

Specs at a Glance

• Frame Interface: Specialized OSBB (outboard press-fit style).
• Crank Compatibility: Shimano 24 mm spindle cranksets (e.g. Hollowtech II).
• Bearings: Ceramic bearings with hardened-steel races for low friction and durability.
• Included Components: Press-fit cups with bearings, dust covers, grease, and decal.
• Weight: Lightweight design tailored for performance-oriented riding.

Design Benefits

1. Lower friction: Ceramic bearings significantly reduce rotational drag.
2. Enhanced durability: Hardened races and ceramic construction improve longevity.
3. Clean conversion: Seamlessly adapts Shimano 24 mm cranksets to OSBB frames with precision and reliability.

Final Take

Ideal for riders using Shimano cranksets in Specialized OSBB frames, the CeramicSpeed Ceramic Race Bottom Bracket OSBB to 24 mm offers refined performancemelding smooth operation with long-term resilience.