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Custom Steel Frame Development

From concept and geometry review to prototype and small-batch production.

We support bicycle brands and builders with 4130 Cr-Mo steel frame development, custom geometry solutions, and flexible production for new projects.

Our Development Capabilities

Custom Geometry

Geometry development based on brand requirements, rider applications, and project specifications.

Prototype Development

Prototype frames for design evaluation, fit checking, and project validation before production.

Small-Batch Production

Flexible production quantities for emerging brands, limited runs, and new frame platforms.

Quality Control

Inspection throughout welding, alignment, finishing, and final frame preparation.

Our Development Process

1. Project Discussion

Review your concept, application, quantity requirements, and target specifications.

2. Geometry Review

Evaluate drawings, geometry data, tube requirements, and technical details.

3. Prototype Development

Build prototype frames for testing, feedback, and design confirmation.

4. Evaluation & Adjustment

Review prototype results and make necessary adjustments before production.

5. Small-Batch Production

Move into production with confirmed specifications and quality standards.

Project Support

Drawing Support

Support for geometry review, frame drawings, and technical communication.

Tube Selection

4130 Cr-Mo tubing options based on frame application and performance requirements.

Frame & Fork Development

Matching frame and fork solutions for complete platform development.

Testing Support

Prototype evaluation and external testing support when required.

Brand Requirements

Support for decals, finishing options, and brand-specific specifications.

Why Brands Work With KratosCycling

Steel Frame Specialist

Focused on 4130 Cr-Mo steel frames across gravel, road, MTB, touring, and custom applications.

Small-Batch Focused

Flexible production suitable for prototypes, limited runs, and growing bicycle brands.

Practical Engineering

Combining manufacturing experience with realistic solutions for production feasibility.

Direct Communication

Clear communication throughout development, from first discussion to production.

Ready to Start Your Steel Frame Project?

Send us your frame concept, geometry, or project requirements.
Our team will review the details and provide technical feedback.

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