Description

Black BSA Threaded Bottom Bracket Cup & Bearing Set – Steel 5 Piece Bicycle Bottom Bracket

This black BSA threaded bottom bracket cup and bearing set is designed for traditional 5-piece bicycle bottom brackets. Manufactured from durable steel, this classic cup and cone bottom bracket system provides reliable performance and easy servicing for many vintage, retro, and utility bicycles.

Finished in black, this version is ideal for builds where a darker component finish is preferred, helping it visually stand apart from traditional silver bottom bracket sets.

The set is supplied in OEM packaging and includes the essential cups and bearings required for a standard BSA threaded bottom bracket assembly.

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Compatibility & Application

This bottom bracket set is designed for frames using BSA (British Standard Cycle) threading, also known as English thread.

Typical BSA specifications:

• Thread size: 1.37″ x 24 TPI

• Frame shell width: Commonly 68mm or 73mm

• Thread direction:

  • Drive side: Left-hand thread

  • Non-drive side: Right-hand thread

Commonly found on:

• Vintage road bikes

• Classic touring bikes

• Older mountain bikes

• Traditional steel frame bicycles

• Restoration and retro builds

This type of cup and cone bottom bracket system is popular due to its simple design, serviceability, and durability.

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Why Choose a Steel BSA Bottom Bracket?

Steel bottom bracket cups offer several advantages:

• Strong and durable construction

• Traditional serviceable cup & cone design

• Compatible with many classic cranksets

• Easy to maintain and adjust

• Ideal for retro restorations and budget repairs

For many riders restoring or maintaining older bikes, BSA threaded cup and bearing systems remain one of the most reliable and serviceable bottom bracket options available.

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Important Sizing Information

Before purchasing, please confirm your frame uses a BSA / English threaded bottom bracket shell (1.37″ x 24 TPI).

Bottom bracket compatibility depends on frame threading, shell width, and crankset design.

If you are unsure, please feel free to contact us before ordering.

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Why Choose Hopkinson Cycles?

When you buy from Hopkinson Cycles, you’re buying from a family-run UK bike shop with real cycling knowledge.

✔ Free UK postage
✔ Trusted family-run business
✔ Expert advice from experienced cyclists
✔ In-house stock and dispatch
✔ Fast order handling

We pride ourselves on offering quality bicycle components, honest advice, and excellent customer service.

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📞 Hopkinson Cycles
Queen Street, Horbury, Wakefield, WF4 6LP
📞 01924 274209
📧 info@hopkinsoncycles.com
🌐 www.hopkinsoncycles.com