S-PartS Titanium Bolt Upgrade Kit for Brompton | TC4 CNC Lightweight Frame & Hinge Hardware Set
💎 $400–$1000 Orders — 12% OFF
🌟 $1000+ Orders — 15% OFF
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S-PartS proudly presents a complete titanium bolt upgrade system engineered specifically for Brompton folding bicycles.
Crafted from aerospace-grade TC4 titanium (Ti-6Al-4V) and CNC-machined with micron-level tolerances,
this bolt series delivers superior strength, lighter weight, and a premium aesthetic finish.
From cockpit clamp bolts to hinge hardware, wheel axle nuts, frame pivot bolts, and suspension mounts—
every component is refined to enhance durability, performance, and Style.
Perfect for riders who demand both beauty and engineering precision.
⚙️ Precision Craftsmanship
Bolt heads are forged using S-PartS custom high-temperature dies at 650°C.
Each die is limited to under 300 uses to ensure maximum forging accuracy.
All structural components are CNC-machined using aerospace-grade composite tooling.
Micron-level tolerances ensure smoother threads and exceptional fastening strength.
This is not just a Color upgrade—it's a full mechanical enhancement.
🎨 Color Finishing Technology
PVD Series (Gold / Rainbow / Black / Blue)
Created using PVD vacuum coating, forming a dense titanium-nitride layer:
Higher surface hardness
Superior corrosion resistance
Deep metallic Color tone
Fade-resistant and weatherproof
Anodized Series (Green / Purple / Candy / Indigo)
Produced through titanium anodic oxidation, generating oxide layers of varying thickness:
Increased hardness and corrosion resistance
No paint required – Colors created solely by light interference
Unique, iridescent finishes on every bolt
A perfect fusion of science, engineering, and art.
🧩 Compatible Components (SKU Positions)
(Color variations sold separately)
| Component (English) | Description |
|---|---|
| Original Grip Clamp Bolt | 1 pc |
| Handlebar Fixing Bolt | 1 pc |
| Head Tube Tension Bolt | 1 pc |
| Head Tube Hinge Clamp Bolt | 1 pc |
| Front Carrier Block Bolts | Set of 3 |
| Front Axle Lock Nuts | Set of 2 |
| Left Front Axle Stop Washer | 1 pc |
| Right Front Axle Stop Washer | 1 pc |
| C Line Saddle Clamp Bolt Set | 1 pc (with washer) |
| C Line Rear Frame Pivot Bolts | Set of 2 |
| C Line Easy Wheel Bolts | Set of 8 |
| P Line Easy Wheel Spacer | 1 pc |
| Rear Axle Lock Nuts | Set of 2 |
| Rear Axle Stop Washers | Set of 2 |
| Rear Suspension Block Bolts | Set of 2 |
| Chain Tensioner Bracket Nut | 1 pc |
| Internal Gear Adjuster Lock Nut | 1 pc |
| T Line Frame Pivot Bolt | 1 pc |
| T Line Seatpost Clamp Bolt | 1 pc |
Fits Brompton C Line / P Line / T Line.
🌈 Available Colors
Gold
Rainbow
Titanium
Black
Blue
Green
Purple
Candy
Indigo
⭐ Key Features
Aerospace-grade TC4 titanium (Ti-6Al-4V)
Up to 40% lighter than factory steel bolts
CNC-machined for perfect OEM fit
Corrosion-proof, rust-proof, weather-resistant
9 Color finishes via PVD / Anodized technology
Engineered specifically for Brompton folding bikes
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