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% rangeMain Frame: Precision drawn heat-treated steel tubing with hand brazing and selected auto-brazed jointsRear Frame: Superlight Advance rear frame made from Titanium with a replaceable hanger, redesigned suspension block and new 54mm roller wheelsFork: Superlight Titanium fork with a threaded headsetWeight: 10.19kgFolded Size: 645mm (H) x 565mm (W) x 270mm (D) (25.3'' x 23'' x 10.6'')Colour: Storm Grey MetallicSaddle: Superlight saddle with chromoly rails, carbon reinforced base and lightweight padding. Includes integrated carry handle and light mount. Includes lightweight Superlight PentaclipSeatpost: Brompton Extended Chromoly steel tube - gloss black. Suitable for maximum inside leg 35"/89cmSeat clamp: Machined aluminium seat clamp leverGrips: Superlight lock-on grips with precision ground lightweight foam adhered to ultrathin engineered core weighing just 42g per pairPedals: Brompton Folding left hand and non-folding right-hand pedalsHinge Clamps: Machined aluminium hinge clamp levers and plates anodised matt black finishFront Wheel: Superlight front wheel - Lightweight rim, double-butted spokes and aluminium hub body with sealed bearings and hex key axleRear 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 axleTyres: Schwalbe ONE Black TyreTubes: Presta ValveChainset: 6061 forged aluminium crank with 50T chainring and integrated chainguardBottom Bracket: Square taper bottom bracketDerailleur: Patent-pending direct mount 4 speed derailleurSprockets: 11-13-15-18 ToothShifter: Brompton 4 speed trigger shifterChain: Hollow pin Superlight Advance ChainChain tensioner: Advance chain tensioner with replaceable hanger mountingHandlebar: High handlebar - Triple butted 6061 aluminium handlebar with shot-peened finishBrakes: Dual Pivot CalipersHeadset: Superlight headsetFront carrier: Front carrier block adaptor for all types of Brompton luggageMudguards: New curved profile with updated mudguard flapsLighting (battery): Brompton 500 lumen USB rechargeable front light and Brompton rear battery lampRoller Frame: Maximum luggage capacity 10kgPrevious model name: Brompton Superlight H4R-X