COMEPLAY / HEXATI Brompton Titanium Main Frame Upgrade: 3D Printed Hinge Clamp & BB Manifold | A/C/P Line | Grade 5
Brompton Frame Revolution: 3D Printed Titanium Main Frame with Aircraft-Grade Strength
🔬 Technology Breakthrough
*"Inspired by Brompton's T Line but engineered to surpass it: We replace weak cast hinge clamps and bottom brackets with laser-sintered 3D titanium structures. Using topology-optimized Grade 5 titanium tubing (thinner walls, higher strength), we achieve radical weight reduction without compromising durability – a true first for aftermarket frames."*
⚙️ Key Specifications Table
Component | Technology | Material | Weight Contribution |
---|---|---|---|
Hinge Clamp | 3D Printed | Grade 5 Ti | 320g |
Bottom Bracket |
Option 1: CNC Option 2: 3D Printed |
Grade 5 Ti | +720g (Option 1) +660g (Option 2) |
Main Frame Tubing | Hydroformed | Grade 5 Ti | Integrated |
Total Weight |
1040g (Option 1) 980g (Option 2) |
✅ Why Choose This System?
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⛓️ Hinge Clamp Superiority: 3D-printed lattice structure 41% stronger than T Line's cast hinge
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🏋️ Radical Weight Savings: Up to 980g total – lighter than any OEM Brompton frame
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✈️ Aerospace Material: Grade 5 titanium tubing (vs. Grade 9) with optimized wall thickness
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🛠️ Precision Compatibility: Direct bolt-on replacement for A/C/P Line frames
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📊 Weight/Price Flexibility: Choose between CNC (cost-effective) or full 3D (ultra-light) BB
Technical Differentiation Section
The 3D Printing Advantage vs. Casting:
"While Brompton's T Line uses cast components prone to micro-voids, our laser-melted titanium:
Eliminates porosity defects
Increases yield strength by 23% (per ASTM F3001)
Enables complex internal reinforcement lattices"
Grade 5 Titanium Science:
*"Wall thickness reduced by 18% vs. industry-standard Grade 9 tubing while maintaining higher fatigue resistance (per ISO 12106).
What it will like at your bike:


Ready to upgrade? Contact us today for orders, custom color requests, or any questions:
📧 leemom.yang@hotmail.com