Chris King ThreadFit 24 Bottom Bracket

The Chris King ThreadFit 24 Bottom Bracket offers a premium threaded solution for riders using 24 mm crank spindles. With Chris King’s reputation for durable, high-precision sealed bearings and a design built for serviceability, this bottom bracket is ideal for road and mountain bike builds that demand reliability and smooth performance.

Specifications at a Glance

• Interface: ThreadFit 24 (threaded shell)
• Shell Compatibility: 68 mm or 73 mm BSA threaded frames
• Spindle Compatibility: 24 mm (e.g. Shimano, SRAM, FSA, etc.)
• Bearings: Chris King sealed steel bearings (more balls for higher load handling)
• Material: CNC-machined aluminum cups with hardened bearing races
• Serviceability: Grease injection ports, removable bearings, full rebuild capability
• Weight: Typically ~ 89 g for BSA 68/73 variant

Design Benefits

1. Eliminates creaks: Threaded installation ensures a stable, torque-locked connection to the frame.
2. High load capacity: The bearing design uses more bearing elements than typical BBs to better distribute load and resist wear.
3. Long-term serviceability: Bearings can be replaced or re-greased, so you don’t need to replace the entire unit.
4. Broad crank compatibility: Works with most 24 mm spindle cranksets and supports conversion kits for other spindle standards.
5. Precision and durability: Built to tight tolerances for consistent performance and extended life under varied conditions.

Final Take

The Chris King ThreadFit 24 Bottom Bracket is a premium choice for cyclists who demand mechanical excellence and long-term serviceability. Whether you’re building a road machine or all-terrain rig with a 24 mm crank, this bottom bracket combines the confidence of threaded fitment with Chris King’s high-performance bearing technology.