Drivetrain |
Brompton 4 speed drivetrain, 163% range |
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Frame |
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 |
3AL/2.5V Titanium, Triple-Butted, Seamless Weld |
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Stem |
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LEVEL 3 Carbon-Wrapped 6061 Alloy, Black |
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Fork |
Superlight Titanium fork with a threaded headset |
Endurance Disc, Full Carbon, Tapered Steerer |
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Seatpost |
Brompton Standard Chromoly steel tube – gloss black. Suitable for maximum inside leg 33″/83cm |
LEVEL 3 Inline Carbon Monocoque, 27.2 mm |
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Grip |
Superlight lock-on grips with precision ground lightweight foam adhered to ultrathin engineered core weighing just 42g per pair |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
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Chain |
Hollow pin Superlight Advance Chain |
Shimano Deore XT M8100, 12-Speed Hyperglide+ |
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Shifters |
Brompton 4 speed trigger shifter |
Shimano Ultegra Di2 R8170 12-Speed Hydraulic |
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Gear |
4-speed gear system |
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Saddle |
Fizik Aliante R7 – a comfortable saddle with lightweight performance from its Composite Carbon Nylon shell |
Brooks Cambium C15 All-Weather, Black |
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Headset |
Brompton Superlight headset |
LEVEL 44, a choice of anodised colours available in BikeBuilder |
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Derailleur Front |
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Shimano Ultegra Di2 R8150 Braze-On |
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Derailleur Rear |
Patent-pending direct mount 4 speed derailleur |
Shimano Ultegra Di2 R8150 Shadow RD |
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Cassette |
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Shimano Ultegra R8100, 12-Speed Hyperglide+ |
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Chainrings |
6061 forged aluminium crank with 50T chainring and integrated chainguard |
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Sprocket |
11-13-15-18 Tooth |
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Bottom Bracket |
Square taper bottom bracket |
Shimano BB-R60 Threaded BSA |
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Front |
Schwalbe ONE Black Tyre |
Continental GP5000 Folding, 700 x 28 mm, Black |
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Rear |
Schwalbe ONE Black Tyre |
Continental GP5000 Folding, 700 x 28 mm, Black |
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Wheel / RIM |
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 |
LEVEL DB40 Sport Carbon, 12x100F/12x142R Thru-Axle |
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