Weighing 1.55 kg less than the equivalent all-steel model, P Line is lightweight performance, folded and unfolded. 
 
Easy to carry, light and fast - the iconic steel main frame an entirely redesigned titanium rear frame and front fork, completed with premium lightweight components.
 
 
Drivetrain: Brompton 4 speed drivetrain, 163% range
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
Weight: 9.89kg
Folded Size: 645mm (H) x 565mm (W) x 270mm (D) (25.3'' x 23'' x 10.6'')
Colour: Storm Grey Metallic
Saddle: Superlight saddle with chromoly rails, carbon reinforced base and lightweight padding. Includes integrated carry handle and light mount. Includes lightweight Superlight Pentaclip
Seatpost: Brompton Extended Chromoly steel tube - gloss black. Suitable for maximum inside leg 35"/89cm
Seat clamp: Machined aluminium seat clamp lever
Grips: Superlight lock-on grips with precision ground lightweight foam adhered to ultrathin engineered core weighing just 42g per pair
Pedals: Brompton Folding left hand and non-folding right-hand pedals
Hinge Clamps: Machined aluminium hinge clamp levers and plates anodised matt black finish
Front Wheel: Superlight front wheel - Lightweight rim, double-butted spokes and aluminium hub body with sealed bearings and hex key axle
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 Black Tyre
Tubes: Presta Valve
Chainset: 6061 forged aluminium crank with 50T chainring and integrated chainguard
Bottom Bracket: Square taper bottom bracket
Derailleur: Patent-pending direct mount 4 speed derailleur
Sprockets: 11-13-15-18 Tooth
Shifter: Brompton 4 speed trigger shifter
Chain: Hollow pin Superlight Advance Chain
Chain tensioner: Advance chain tensioner with replaceable hanger mounting
Handlebar: High handlebar - Triple butted 6061 aluminium handlebar with shot-peened finish
Brakes: Dual Pivot Calipers
Headset: Superlight headset
Front carrier: Front carrier block adaptor for all types of Brompton luggage
Mudguards: New curved profile with updated mudguard flaps
Lighting (battery): Brompton 500 lumen USB rechargeable front light and Brompton rear battery lamp
Previous model name: Brompton Superlight H4L-X