Sealed Cartridge Bottom Bracket for Smooth, Quiet Pedaling
This factory replacement bottom bracket is a sealed cartridge unit designed to restore smooth crank rotation and consistent bearing feel on compatible Brompton bikes. If your current bottom bracket feels gritty, develops play, or starts to creak under load, this is the correct replacement format to bring the drivetrain back to a solid, quiet baseline.
It’s a 68 x 119 mm JIS cartridge bottom bracket supplied with plastic cups for straightforward replacement. For best results and correct torque, installation is recommended by a qualified bicycle mechanic.
Simple. Solid. Reliable.
- OEM replacement sealed cartridge bottom bracket for Brompton
- 68 x 119 mm JIS format with plastic cups
- Sealed cartridge design helps keep contamination out for consistent performance
- Ideal replacement when bearings feel rough, loose, or noisy
