Description
A Chin Haur CH52 sealed cartridge bottom bracket suitable for bicycles using a conventional square-taper crankset and 68 mm English-threaded bottom bracket shell.
The unit is clearly marked CH52, 68 x 111L EN and BC 1.37 x 24T, identifying it as a 68 mm English/BSA threaded unit with an approximately 111 mm square-taper spindle.
These cartridge bottom brackets were fitted to a wide range of road, touring, hybrid and mountain bikes and can be particularly useful when repairing or restoring an older bicycle where a traditional square-taper chainset is being retained.
Specifications
- Manufacturer: Chin Haur
- Model: CH52
- Type: Sealed cartridge bottom bracket
- Interface: Square taper
- Shell width: 68 mm
- Spindle length: 111 mm
- Thread: BC 1.37 x 24T
- Thread standard: English / BSA
- Marking: 68 x 111L EN
- Colour: Black / silver
- Quantity: One bottom bracket
Condition
Used vintage component showing normal signs of previous installation, age and workshop storage.
There is cosmetic marking, surface oxidation and evidence of previous fitting around the cups and body. Please examine the photographs carefully for the exact condition.
Sold as a used component.
Compatibility
Designed for bicycles with:
- 68 mm threaded bottom bracket shells
- English/BSA 1.37 x 24T threading
- Square-taper cranksets requiring an approximately 111 mm spindle
Bottom-bracket spindle length affects chainline, so buyers should check the requirements of their crankset before ordering.
Sorcha Rosa’s Comment
Square-taper bottom brackets might not be exciting by modern standards, but they’ve kept an extraordinary number of bicycles on the road. This Chin Haur unit is exactly the sort of useful workshop component that can be difficult to find when you’re repairing an older bike. If the dimensions match your build, it deserves to go back into service rather than sitting on a workshop shelf.
Sorcha Rosa
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