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)

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

Compatibility Check: Due to the complexity of original equipment manufacturer (OEM) parts' models and batches, there may be instances where this product is incompatible.

Upon receiving this product, please compare it with the OEM specifications to ensure compatibility before installation.

Torque Specifications: Install this product strictly according to the torque values specified in the OEM parts manual.Installation Issues: If you encounter any discrepancies with the OEM specifications or face difficulties at the initial stage of installation, stop immediately and contact customer service for assistance with returns or exchanges.

No Forced Installation: Do not force installation under any circumstances.Liability: Any damages resulting from forced installation or unauthorized modifications of this product (or its components) will be the sole responsibility of the buyer.

All products are photographed to accurately represent the colors you will see upon receipt.

Due to differences in lighting, angles, or screen settings, slight color variations may occur.

The actual product should be considered the standard.For "colored" and "blue" products, the coloring process may result in uneven color distribution, making each product unique.