top of page

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.


Presenting a sturdy yet lightweight steel frame, this model is more than 3.3 lbs lighter than the original bike. This means you can get around easily and still experience the smooth riding style that Brompton is adored for. The durable 4-speed system gears which provide enhanced control will aid you in your city exploration. Offering everything from pace-filled acceleration to a stable, planted position on the saddle, you can keep your eyes are firmly fixed on the horizon of opportunities that await you.



From 9.5 kg


4 Speed (Urban)


Titanium and Steel

Folded Size

25.3' H' x 23'' W x 10.6'' D

Main Frame

Precision drawn heat-treated steel tubing with hand brazing and selected auto-brazed joints


High-shine Gloss Winter Sky and textured Concrete Gray with Fire Red and Aqua Teal accents

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


Ergon GE1 Evo Slim – A premium ergonomic, rider-oriented grip with more comfort, precision and performance


Extended, Black (35")


Fizik Terra Argo


Machined aluminium seat clamp and rear frame clip in anodised matt black finish

Hinge Clamps

Machined aluminium hinge clamp levers and plates anodised matt black finish


Brompton Folding left hand and non-folding right-hand pedals


Brompton 4 speed drivetrain, 163% range

Number of gears

4 Speed - Urban


Advance chain tensioner with replaceable hanger mounting

Bottom Bracket

Square taper bottom bracket


Superlight headset


Brompton 4 speed trigger shifter


11-13-15-18 Tooth


Patent-pending direct mount 4 speed derailleur

Rear Wheel

Lightweight rim, double-butted spokes and aluminium hub body with sealed bearings, newly developed 4 speed freehub body and hex key axle

Front Wheel

Superlight 4 speed rear wheel


Schwalbe One Tanwall - Developed specifically for the CHPT3 bike with class leading grip, weight and rolling speed


Tubolito lightweight inner tubes


Not included


Not included


Not included


Not included


Dual Pivot Calipers

Front Carrier

Not included


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 and contains 1x Tubolito lightweight inner tube.

Frame Pouch details

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.

Frame Pouch details

It’s made from a highly durable Hypalon material in a waterproof welded construction.

Brompton X CHPT 3 4th Edition 2023 Bike

  • Great news!

    We have extended our returns to 45 days. Items are to be returned in their orginal condition and packaging.

    Items found not in an acceptable condition may be void.

bottom of page