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Brompton CHPT3 4th Edition | Reference only

Brompton CHPT3 4th Edition | Reference only
Brompton x CHPT3 4th Edition
  • Brompton x CHPT3 4th Edition
  • Brompton x CHPT3 4th Edition
  • Brompton x CHPT3 4th Edition
  • Front Frame: Gloss Fire Red 
Handlebar pin: Gloss Aqua Teal
  • Brompton x CHPT3 4th Edition
  • tan-walled Schwalbe One tyres for optimal grip and maximum style. With weight-saving Tubilito inntertubes.
  • Mainframe: Gloss Winter Sky 
Front Frame: Gloss Fire Red 
Glitch effect decals
  • CHPT3 Frame Pouch
This item is currently not available.


UPDATE: Brompton has not yet announced if there will be a 5th edition:

"We're revealing our new collab Brompton folding bike - designed in collaboration with CHPT3 and inspired by the community and culture of cycling in New York."

The Brompton x CHPT3 4th Edition folding bike. A minimalist P Line, packed with high-performance details.
4 speed • CHPT3 Frame Pouch Bag • 20.90lbs
Bag only with V4

Mainframe: Gloss Winter Sky
Rear frame: Textured Metallic Concrete
Front Fork: Textured Metallic Concrete
Handlebar Stem: Textured Metallic Concrete
Front Frame: Gloss Fire Red
Handlebar pin: Gloss Aqua Teal
Glitch effect decals

Bikes may be shipped for an additional fee.
You can send us a prepaid shipping label and we can drop off your bike at FEDEX, UPS, USPS locations.

Made for Speed
Handbuilt titanium and steel frame. All the practicality of a Brompton in a lightweight and performance oriented form. More than 3.3lbs lighter than the original bike.

fi'zi:k Terra Argo X5 Saddle
We chose this gravel-specific saddle for the superb vibration absorption, and the short nose. This gives you a stable, planted position. You can shift further forward too – the ergonomic design minimises pressure on any sensitive parts. Cleverly thought-out drainage channels make it brilliant for wet-weather riding.

Superlight, compact gearing system
The Brompton 4-speed system* for rapid urban acceleration and nimble climbing ability. With a 60-gram derailleur, meticulously engineered to fit inside the narrow fold.

*patent pending

A fast and light wheelset
Designed and tested to stand up to daily use in the city, in all weathers. On superb tan-walled Schwalbe One tyres for optimal grip and maximum style. With weight-saving Tubilito inner tubes.

Brompton x CHPT3 Frame Pouch Bag

Your CHPT3 comes with a limited-edition Frame Pouch Bag. It’s inspired by how the community use their Brompton x CHPT3 bikes - moving fast around the city, racing, heading out on long weekend rides.

It’s perfectly sized for a spare tube and tools. Just like the bike, it’s minimalist, practical and brilliantly durable. In abrasion resistant Hypalon fabric with a welded, waterproof construction.

Brompton x CHPT3 4th Edition
A minimalist Brompton P Line, packed with high-performance details. We selected proven performance modifications such as titanium forks and rear triangle, assembled for speed without loss of comfort. The gearing is chosen to cover all bases, from quick sprints and sustained speed to steep climbs. All contact points between you and the bike, and the bike and the road deliver lightness, performance and comfort. We’ve even sourced light weight inner tubes, which means you can focus on avoiding the shortest route to reach your destination.
Order Quantity
Due to popular demand - we can only allow 1 bike per order
Main Frame
Precision drawn heat-treated steel tubing with hand brazing and selected auto-brazed joints
Rear Frame
Superlight Advance rear frame made from Titanium with a replaceable hanger
Redesigned suspension block and new 54mm roller wheels
Superlight Titanium fork with a threaded headset
Weight (Approx.)
20.9 lbs
Folded Size
25.3''(H) x 23''(W) x 10.6'(D)
FizikTerra Argo Saddle - A short nose saddle with a ride-compliant carbon-reinforced nylon shell and S-Alloy rails
The saddle absorbs road chatter and vibrations, delivering the comfort needed for long distance riding
Brompton Chromoly steel tube - gloss black
Ergon GE1 Evo Slim – A premium ergonomic, rider-oriented grip with more comfort, precision and performance
High-shine Gloss Winter Sky and textured Concrete Gray with Fire Red and Aqua Teal accents
Brompton Folding left hand and non-folding right-hand pedals
Rear Wheel
Superlight 4 speed rear wheel
Lightweight rim, double-butted spokes and aluminium hub body with sealed bearings
Newly developed 4 speed freehub body and hex key axle
Hinge Clamps
Machined aluminium hinge clamp levers and plates anodised matt black finish
Schwalbe One Tanwall - Developed specifically for the CHPT3 bike with class leading grip, weight and rolling speed
Bottom Bracket
Square taper bottom bracket
6061 forged aluminium crank with 50T chainring and integrated chainguard
Patent-pending direct mount 4 speed derailleur
Brompton 4 speed rear wheel?
11-13-15-18 Tooth
Brompton 4 speed drivetrain, 163% range
Brompton 4 speed trigger shifter
Hollow pin Superlight Advance Chain
Chain Tensioner
Advance chain tensioner with replaceable hanger mounting
Dual Pivot Calipers
Superlight Headset
Frame Pouch Bag
Each bike comes with a limited-edition CHPT3 x Brompton Frame Pouch Bag
The frame pouch bag has been designed to fit securely inside the triangle on the bikes' mainframe
Perfect for storing a spare innertube (included) plus a multi-tool and tyre levers for essential road side repairs
Simple flap closure to the main compartment and secures via a Velcrostrap. Externally it features a grippy printed surface and Brompton logo; both in CHPT3 Fire Red.
It’s made from a highly durable Hypalon material in a waterproof welded construction that will repel whatever the elements can throw at it

Part Numbers

Option MPN Store SKU
Brompton x CHPT3 4th Edition S4E01Q0060X1R0003004022AQ BRO158885394