Why buy your bike from Sigma Sports?
Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.
All our bikes are fully built by our Cytech qualified mechanics. To find out more, see the Built, Checked, Tuned and Tested section below to see how we'll deliver your bike.
We offer FREE DELIVERY of your bike to your home or place of work. Once you've placed your order, our Customer Care team will be in contact to offer a convenient delivery date of your choice.
Save up to 40% off your new bike with all the biggest providers including Cyclescheme, Bike2Work scheme, Green Commute Initiative and more. Find out more about how you can save today.
Brompton x CHPT3 4th Edition Folding Bike
Check out this new Brompton P Line - it's a minimalist ride that's packed with all the high-performance details you need! They've made sure to pick out only the best mods, like titanium forks and rear triangle, so you can go fast without sacrificing comfort. The gearing is super versatile too, perfect for everything from quick sprints to steep climbs. And when it comes to your ride quality, they've made sure that every contact point between you and the bike, and the bike and the road, is top-notch. They even found some lightweight inner tubes so you can get to your destination as fast as possible!
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.
Highlights
- Newly developed 4 speed freehub body
- CHPT3 Frame Pouch Bag
- 9.5kg (Approx)
Technical Specification
| 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 |
| Fork | Superlight Titanium fork with a threaded headset |
| Bottom Bracket | Square taper bottom bracket |
| Grips/Bar Tape | Ergon GE1 Evo Slim – A premium ergonomic, rider-oriented grip with more comfort, precision and performance |
| Brakes | Dual Pivot Calipers |
| Rear Derailleur | Patent-pending direct mount 4 speed derailleur |
| Shift Levers | Brompton 4 speed trigger shifter |
| Chain | Hollow pin Superlight Advance Chain |
| Cassette | 11-13-15-18 Tooth |
| Crankset | 6061 forged aluminium crank with 50T chainring and integrated chainguard |
| 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 |
| Tyres | Schwalbe One Tanwall - Developed specifically for the CHPT3 bike with class-leading grip, weight and rolling speed |
| Saddle | Fizik Terra 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 |
| Seatpost | Brompton Chromoly steel tube - gloss black |
| Pedals | Brompton Folding left-hand and non-folding right-hand pedals |
| Folded Size | 645mm (H) x 585mm (W) x 270mm (D) (25.3'' x 23'' x 10.6'') |
| Manufacturers claimed weight | 9.5kg |
| Accessories | Each bike comes with a limited-edition CHPT3 x Brompton Frame Pouch Bag |
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