PRODUCTS / TITANIUM BICYCLE / BROMPTON-COMPATIBLE PARTS

Brompton-Compatible Titanium Parts

Third-party compatible titanium main frames, forks, rear triangles and racks for 16" and 20" folding bicycles — GR9 construction, hand-welded in-house, all finishes available.

Send Inquiry

Disclaimer — Not affiliated with Brompton Bicycle Limited. All parts listed on this page are third-party compatible components designed to fit Brompton folding bicycles. "Brompton" and related marks are property of their respective owners.

16" Third-Party Compatible Series

Main frame, front fork and rear triangle for 16" folding bicycles designed to match Brompton geometry and mounting standards.

Brompton-Compatible 16-inch Main Frame

Brompton-Compatible 16" Main Frame (Third-Party Compatible)

112mm rear dropout · C-brake or disc-brake option · Natural titanium or sand-blasted finish

Series Item

Brompton-Compatible 16-inch Front Fork

Brompton-Compatible 16" Front Fork (Third-Party Compatible)

72mm front dropout · C-brake or disc-brake option

Series Item

Brompton-Compatible 16-inch Rear Triangle

Brompton-Compatible 16" Rear Triangle (Third-Party Compatible)

112mm rear dropout

Series Item

20" 3D-Printed Third-Party Compatible Series

Metal 3D-printed titanium front fork and rear triangle for 20" folding bicycles — designed for flat-mount disc brake and thru-axle compatibility.

Brompton-Compatible 20-inch 3D-Printed Front Fork

Brompton-Compatible 20" 3D-Printed Front Fork (Third-Party Compatible)

Flat-mount disc · 100×12 thru-axle

Series Item

Brompton-Compatible 20-inch 3D-Printed Rear Triangle

Brompton-Compatible 20" 3D-Printed Rear Triangle (Third-Party Compatible)

Disc brake · 142×12 thru-axle

Series Item

Third-Party Compatible Rack Series

Lightweight titanium front and rear racks designed to fit C / P / A / T line folding bicycles.

Brompton-Compatible Front Rack C/P Line

Front Rack (C/P Line) (Third-Party Compatible)

180g · Natural titanium · sand-blasted · black · mirror-polished finishes available

Series Item

Brompton-Compatible Rear Rack C Line

Rear Rack (C Line) (Third-Party Compatible)

330g light-weight titanium rear rack

Series Item

Brompton-Compatible Pig Nose Rack

Pig Nose Rack (A/C/P/T Line) (Third-Party Compatible)

250g light-weight titanium pig nose rack

Series Item

Technical Specifications

Core construction parameters for all third-party compatible parts.

Material

GR9 Ti-3Al-2.5V titanium alloy (all rack parts); 20" fork & rear triangle are metal 3D-printed

Fork Dropouts

72mm QR · 100×12 thru-axle

Rear Dropouts

112mm QR · 142×12 thru-axle

Brake Standard

C-brake · flat-mount disc

Rack Weight

180g (front) · 250g (pig nose) · 330g (rear)

Surface Finish

Natural titanium · sand-blasted · black · mirror-polished

Customization Options

All third-party compatible parts can be configured to match specific builds.

FN

Surface Finish

Natural titanium · sand-blasted · black anodised · mirror-polished

BS

Brake Standard

C-brake or flat-mount disc configuration on 16" frames and forks

WR

Weight Class

Standard or light-weight rack construction for all rack options

CS

Custom Sizing

Non-standard dropout spacing, offset or geometry — quoted on request

Frequently Asked Questions

Will these parts fit my Brompton?
All parts are designed to match the published geometry and mounting standards of the respective line (A/C/P/T). We recommend confirming dropout spacing and brake standard before ordering.
What is the difference between 16" and 20" series?
16" parts are hand-welded GR9 titanium. 20" parts use metal 3D-printing technology for organic tube shapes and are offered in flat-mount disc with thru-axle standards only.
Are these parts lightweight?
Yes — titanium construction typically saves 30–50% weight over steel or aluminium OEM parts. Rack weights are published for reference.
Can I mix C/P line racks with A/T line frames?
Rack compatibility depends on the mounting standard of your specific frame. Contact us with your frame specification to confirm.

Related Products

Titanium Folding Bicycle Products

Titanium Folding Bicycle Products

GR9 titanium folding frames, forks and complete builds — 16" to 20" wheel sizes.

Browse
Titanium Bicycle Frames

Titanium Bicycle Frames

Fourteen GR9 frame geometries covering road, gravel, mountain and small-wheel use.

Browse
Titanium Bicycle Racks

Titanium Bicycle Racks

Ten GR9 rack configurations — front, rear, touring, MTB and small-wheel.

Browse

Request a Quotation for Third-Party Compatible Titanium Parts

Tell us which third-party compatible part you are interested in — main frame, fork, rear triangle or rack — and the wheel size / line, and we will respond with a tailored quotation.

Helpful details: Product Type · Wheel Size (16" / 20") · Brake Standard · Surface Finish · Quantity

Send Inquiry