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  • CHPT3 V4 - 2023
  • CHPT3 V4 - 2023
  • CHPT3 V4 - 2023
  • CHPT3 V4 - 2023


CHPT3 V4 - 2023


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1 (866) 920-4933

Turning a new page in the Brompton and CHPT3 story, the latest collaboration brings a fresh dynamic to a proven partnership. One founded on fun, practicality, and high performance.

Drawing on Brompton's previous three collaborations with David Millar of CHPT3, they turn to page 4, and the horizon broadens. A bike that originated as a city commuter and became a daily workhorse for David, a former pro-cyclist, is now embraced by a community who see beyond simply departing from point A and arriving at point B.

The Brompton x CHPT3 could be called an unlimited edition bike. It draws on the need for core Brompton practicality yet fulfills the desire for performance, causing you to stray from the shortest distance between two points. It’s everything you need and nothing that impedes your progress. Not a folding bike you could ride anywhere, but rather a bike that you will ride everywhere that also folds.

This bike uses the Low Handlebar which is Brompton’s lowest and sportiest handlebar. This gives a zippy, fast position for riders of average height and a mid-height position for shorter riders - perfect for fast commutes.

The bikes finish takes inspiration from Urban materials. High-shine Gloss Winter Sky and textured Concrete Grey are complimented with Fire Red and Aqua Teal accents. There CHPT3 captures the feeling of inner-city riding.

Aside from the excludive colour the bike is fitted with Schwalbe One Tanwall tires, Premium aluminium touch points, a Fizik Terra Argo Saddle, Ergon GE1 grips, exlusive CHPT3 frame bag and Tublioto inner tubes. 

  • Questions? Book a consultation with one of our Brompton experts
  • 2023 Brompton X CHPT3
  • High-shine Gloss Winter Sky and textured Concrete Grey are complimented with Fire Red and Aqua Teal accents.
  • Titanium Fork and Rear Triangle
  • Alloy headset in place of the usual steel
  • Low Handlebar - Zippy,  fast position for riders of average height and a mid-height position for shorter riders
  • Four-speed external derailleur - Nearly the same gear ratio as a 3-speed but weighs only 60g
  • Redesigned extra-firm suspension block transmits maximum pedal power without losses 
  • New wheelset - Brompton's lightest and strongest yet with hex-key axles for easy roadside wheel removal
  • Schwalbe One tires - Super speedy and designed for cities
  • Fizik Terra Argo Saddle
  • Ergon GE 1 Grips
  • Exclusive CHPT3 Frame Bag
  • Optional Front Carrier Block (FCB) - For mounting Brompton bags
  • Standard seatpost - Can be swapped to Extended or Telescopic if needed 
  • Weight: From 21.8 lbs
BROMPTON CHPT3 V4 *All specifications subject to change without notice due to supply shortages
FRAME Precision drawn heat-treated steel tubing, full ED coated, Hand-brazed in England
FORK, REAR TRIANGLE Titanium, shot blasted and painted Gloss Black, Hand-brazed in England
COLOUR High-shine Gloss Winter Sky and textured Concrete Grey with Fire Red and Aqua Teal accents
HINGES Machined aluminium hinge clamp levers and plates anodised matt black finish
HEADSET Brompton Aluminum - Black
STEM Brompton Low Stem - Precision drawn heat-treated steel tubing, full ED coated, Hand-brazed in England 
HANDLEBAR Brompton Low Handlebar (Low Riding Position) - Black - Triple butted aluminum with shot-peened finish
GRIPS Ergon GE1 Evo Slim – A premium ergonomic, rider-oriented grip with more comfort, precision and performance
SEATPOST Brompton Steel Standard, Extended or Telescopic - Black
SEAT FizikTerra Argo Saddle - A short nose saddle with a ride-compliant carbon-reinforced nylon shell and S-Alloy rails
BRAKES Brompton Dual Pivot Calipers - Black
BRAKE LEVERS Brompton with Integrated Bell and Shifter - Silver/Black
SHIFTERS Brompton Integrated Gear Trigger - Left Hand 4-speed
R. DERAILLEUR Brompton Chain Tensioner w/ 4sp derailleur
FRONT HUB Brompton Alloy - 28h - Black
REAR HUB Brompton Alloy Sealed Bearing - 28h - Black
SPOKES Stainless Steel Straight Gauge - Black
RIMS Brompton Alloy, Double Walled - Black with Machined Braking Surface
TIRES Schwalbe One Tanwall - Developed specifically for the CHPT3 bike with class leading grip, weight and rolling speed
Tubolito lightweight inner tubes
BOTTOM BRACKET Cartridge 119mm JIS
CRANKS Brompton 5-bolt - 54T - Black
COG-SET Brompton 11/13/15/18 T - 163% range
PEDALS Brompton (left hand folds) - Black


SUSPENSION Updated Rubber Elastomer - Firm
WEIGHT From 22.02 lbs
FOLDED SIZE 645mm (H) x 585mm (W) x 270mm (D) (25.3" x 23" x 10.6")

Each bike comes with a limited-edition CHPT3 x Brompton Frame Pouch Bag. Perfect for storing a spare innertube (1x included) plus a multi-tool and tyre levers for essential road side repairs

Optional Front Carrier Block (FCB) 


Standard Seatpost

5' 2" 5' 11"

Extended and Telescopic Seatpost

5' 10" 6' 4"
A BIT ABOUT BROMPTON: If you were to walk into the store and look at a Brompton we would say there are three things you should look for in a folding bike. All of them are fairly obvious. One, the bike should ride well - and, on a small wheeled bike that's tricky because there's a fine line between maneuverability (which is a virtue) and twitchiness (which is a vice). Two, the bike should fold well - otherwise you're blood pressure will rise and you'll curse the day you bought it. Third, it should be transportable, or highly storable - because that's the whole point, right?

Brompton is the only company we've seen that answers all three criteria - and believe us, we've tried every brand out there. The reason others can't compete is because Brompton has answered a fundamental engineering problem. If a bike is going to unfold to a large footprint (which takes the twitch out) then it is unfolding to a bigger bike - and by all logic, a bigger bike unfolded would be a bigger bike folded. So, it's pretty much true that for most folding bikes they either have great rideability but poor transportability or vice versa. And nearly all of them are a mess to fold.

Not Brompton. Brompton has designed the Platonic form of all folding bikes. The bike folds to the smallest size on the market, unfolds in a highly precise and easy manner, and has the same axle-to-axle footprint as a hybrid bike. How did they do this? By not only designing a clever frame, but also designing some 1200 proprietary parts that make everything fit - and fit perfectly. Oh, and nearly all of this is made in England. No wonder this bike has a cult following.

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Did you know we ship bikes completely built and ready to ride? Our bikes are shipped Ride Out Of The Box meaning they are professionally tuned and delivered - worry free. Your bike will arrive at your door step with any accessories installed, so you can ride it right out of the box!

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