Drivetrain
Brompton 4 speed drivetrain, 163% range
Main Frame
Precision drawn heat-treated steel tubing with hand brazing
Rear frame
Superlight Advance rear frame made from Titanium with a replaceable hanger
Fork
Titanium fork with a threaded headset
Folded size
645mm (H) x 585mm (W) x 270mm (D) (25.3'' x 23'' x 10.6'')
Saddle
Superlight saddle with chromoly rails, carbon reinforced base and lightweight padding.
Seatpost
Brompton Extended Chromoly steel tube - gloss black.
Grips
Superlight lock-on grips with precision ground foam adhered to ultrathin engineered core
Seatclamp
Machined aluminium seat clamp and rear frame clip in anodised matt black finish
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
Rear Wheel
Lightweight rim, double-butted spokes and aluminium hub body
Tyres
Schwalbe ONE Black Tyre
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
Shifters
Brompton 4 speed trigger shifter
Chain
Hollow pin Superlight Advance Chain
Chain Tensioner
Advance chain tensioner with replaceable hanger mounting
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
Brompton 500 lumen USB rechargeable front light and Brompton rear battery lamp