Product Overview: The Precision Foundation for Your Custom Frameset
Every great frameset begins with a perfectly machined headtube. Our ZS41-ZS41 Titanium Headtube is precision-engineered from solid Grade 5 titanium rod, offering frame builders and bicycle manufacturers the ideal balance of strength, weight savings, and dimensional accuracy. Designed for seamless integration with IS41-IS41 headsets, this component provides the reliable foundation your custom frames deserve.
Uncompromising Material Quality: Solid Grade 5 Titanium
Unlike formed or welded alternatives, our headtubes are machined from solid Grade 5 (Ti-6Al-4V) titanium rod, ensuring:
- Superior Strength-to-Weight Ratio: Grade 5 titanium delivers exceptional structural integrity without unnecessary mass.
- Zero Weld Lines: Solid construction eliminates weak points and ensures consistent material properties throughout.
- Premium Aesthetics: The natural titanium finish complements high-end frame builds with timeless appeal.
- Corrosion Resistance: Built to withstand years of riding in all conditions without degradation.
Precision Engineering for Perfect Headset Fit
Understanding the critical nature of headtube tolerances, we manufacture to exacting standards. Each unit is CNC-machined to ensure perfect alignment and seamless compatibility with IS41-IS41 (Integrated Standard) headsets.
Key Technical Specifications
| Specification | Detail |
|---|---|
| Material | Grade 5 Titanium (Ti-6Al-4V) – Solid Rod Construction |
| Standard | ZS41-ZS41 (Zero-Stack 41mm) |
| Headset Compatibility | IS41-IS41 (Integrated Standard 41mm) |
| Outer Diameter | 45.0 mm (±0.05 mm tolerance) |
| Inner Diameter | 41.2 mm (±0.05 mm tolerance) |
| Length | Fully Customizable (Standard lengths available upon request) |
| Surface Finish | Precision machined / Polished / Brushed options available |
| Packaging | Individ wrapped to prevent surface damage |
Custom Manufacturing: Length Options Tailored to Your Geometry
Every frame design requires specific headtube dimensions. That’s why we offer complete length customization to match your exact geometry requirements.
- Fully Customizable Length: Provide your target length, and we’ll machine to your specification.
- Precision Cut: Square, parallel ends ensure perfect cup seating and headset alignment.
- Bulk or Single Pieces: No minimum order quantity—order prototype quantities or production volumes.
Why Partner With Us for Your Titanium Frame Components?
- Solid Stock, Not Tubing: We machine from solid Grade 5 rod, guaranteeing consistent wall thickness and material density.
- Tolerance Control: Critical surfaces held to ±0.05 mm for perfect headset fit.
- Surface Finish Options: Choose from raw machined, brushed, or polished finishes to match your brand aesthetic.
- Low Volume Friendly: Whether you need one piece for a custom build or 100 units for a production run, we accommodate your needs.
Applications:
- Custom Titanium Road Frames
- Bespoke Mountain Bikes
- Gravel and All-Road Framesets
- Track and Fixed-Gear Frames
- Production Runs for Independent Brands
- Repair and Replacement for Existing Frames









