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Black folding bicycle with rear rack on a white background
Brompton P Line 4 Speed Mid Handlebar with Rack

Brompton P Line 4 Speed Mid Handlebar with Rack
£2,399.00

Main specification

  • Derailleur Brompton Patent-pending direct mount 4-speed derailleur
  • Gears 4
  • Drivetrain type Chain
  • Brakes Brompton Brompton Dual Pivot Calipers, Rim brake
  • Fork/Shock model Titanium fork with a threaded headset
  • Wheel size 16"
  • Weight (kg) 9.99
Frame Size

Brompton P Line 4-Speed – Lightweight, Fast and Built for the City

The Brompton P Line 4-speed is a lightweight folding bike built for fast, efficient city riding. With its titanium rear frame, it’s easier to carry and more agile on the road, while also helping to smooth out bumps for a more comfortable ride.

The simple 4-speed gearing is designed for urban use, giving you enough range for everyday riding without adding extra weight. An improved suspension block helps make pedalling more efficient, so the bike feels responsive and easy to handle.

Like every Brompton, it folds in seconds into a compact package that’s easy to take on public transport or store at home or work—making it a great choice for commuting and getting around the city.

Lighter to carry. Faster to ride.
Person holding a Brompton folding bicycle against a light-colored wall.
Green Brompton folding bicycle on a white platform with a green background

Titanium rear frame and fork, 20% lighter then all steel Brompton

Around 700 g lighter than steel equivalents, while maintaining strength and durability. The titanium build also helps absorb road vibrations, giving a smoother and more comfortable ride.
Person holding a folded electric bike against a concrete wall.

Superlight 4-speed gearing system

Designed in-house for urban riding, this compact system delivers smooth, reliable shifting while fitting neatly within the Brompton fold. Lightweight and simple, it’s ideal for everyday city use.
Man sitting on a bench with a folded bike next to him against a green hedge background

Improved ride efficiency and handling

The redesigned suspension block improves power transfer and control, making the bike feel more responsive and efficient when pedalling, especially on longer rides or stop-start city streets.

Detailed information

Category General Info
Weight From 9.99 kg
Speed 4 Speed (Urban)
Material Titanium and Steel
Folded Size 25.3' H' x 23" W x 10.6" D
Category Frame
Main Frame Precision-drawn heat-treated steel tubing with hand brazing
Rear Frame Superlight Advance rear frame is made from Titanium with a replaceable hanger
Fork Titanium fork with a threaded headset
Headset Superlight headset
Seatclamp 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
Category Cockpit
Grips Superlight lock-on grips with precision ground foam adhered to the ultrathin-engineered core
Shifters Brompton 4-speed trigger shifter
Category Seating
Seatpost Standard, Black
Saddle Superlight Saddle
Category Drivetrain
Pedals Brompton Folding left-hand and non-folding right-hand pedals
Drivetrain Brompton 4-speed drivetrain, 163% range
Chainset 6061 forged aluminium crank with 54T chainring and integrated chainguard
Bottom Bracket Square taper bottom bracket
Sprockets 11-13-15-18 Tooth
Derailleur Patent-pending direct mount 4-speed derailleur
Category Wheels And Tires
Rear Wheel Double wall rim, double-butted spokes and aluminium hub body
Front Wheel Superlight front wheel - Lightweight, double wall rim, double-butted spokes and aluminium hub body
Tyres Continental Contact Urban
Tubes Schrader valve
Category Brakes
Brakes Brompton Dual Pivot Calipers
Category Accessories And Utility
Mudguards Included
Lighting Reflectors
Rack Not included
Front Carrier Front carrier block adaptor for all types of Brompton luggage