Spoke thread rolling machine head Cyclo CYC-7840 for 14g (2.0 mm) spokes

Cyclo CYC-7840 is a spoke thread rolling machine head engineered for forming threads on 14g (2.0 mm) bicycle spokes. Designed as an attachment for Cyclo thread rolling systems, the unit performs cold rolling to create consistent external threads on spoke ends without cutting material. The head is intended for workshop use, supporting small-scale spoke preparation, wheel building and repair by producing durable, burr-free threads that match standard spoke nipple sizes.

Advantages

The Cyclo CYC-7840 produces rolled threads that maintain the spoke's material continuity, resulting in stronger thread roots and reduced risk of fracture compared with cut threads. Cold rolling eliminates chips and burrs, which reduces the need for secondary finishing and speeds up spoke preparation. The design is compact and integrates with compatible rolling systems, enabling repeatable thread quality and improved throughput in bicycle maintenance or small production environments.

Suitable for

• Forming external threads on 14g (2.0 mm) bicycle spokes
• Workshop wheel building and spoke repair
• Small-scale spoke preparation and maintenance operations
• Applications requiring burr-free, consistent threads for spoke nipples

When it may not be suitable

This head is specifically configured for 14g (2.0 mm) spokes and may not be suitable for spokes of other gauges or diameters without using a different dedicated head or tooling. It is intended as an attachment for Cyclo thread rolling systems; users without a compatible rolling machine or appropriate mounting may not be able to use it directly.

Key specifications

• Applicable spoke gauge: 14g (2.0 mm)
• Threading method: cold thread rolling (external)
• Intended use: spoke end thread forming for bicycle spokes
• Compatibility: designed for Cyclo thread rolling system integration
• Output: burr-free rolled threads suitable for standard spoke nipples

How to use

Install the Cyclo CYC-7840 head into a compatible Cyclo thread rolling machine following the machine manufacturer's mounting and safety instructions. Position a cleaned spoke so the unthreaded end is aligned with the rolling dies, then actuate the machine to perform the cold rolling cycle. Inspect the rolled thread visually and by fitting a spoke nipple to verify proper engagement and thread pitch. Repeat for each spoke, maintaining consistent feed and alignment to ensure uniform thread quality.

What to consider before purchase

• Confirm spoke diameter and gauge are 14g (2.0 mm) to ensure compatibility
• Verify your thread rolling machine is compatible with Cyclo attachment heads
• Consider expected throughput and whether a workshop-grade attachment meets your production needs
• Plan for routine inspection and maintenance of rolling dies to preserve thread quality

Usage recommendations

For consistent results, use clean, straight spokes and ensure correct alignment before each rolling operation. Periodically check die condition and replace worn tooling to maintain thread accuracy and reduce the risk of damaged spokes. Match rolled threads with the appropriate spoke nipples to confirm fit and torque performance during wheel assembly.