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 |
700c, Twin Top Tube Frame, Steel |
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Stem |
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Integrated with Handlebar, 7 Degree Rise |
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Handle Bar |
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Alloy, Urban One Piece Bar and Stem, 620 mm Wide, 12 Degree Sweep |
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Fork |
Superlight Titanium fork with a threaded headset |
Steel with Die Cast Drop Outs |
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Seats |
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Classic Road with Rivets |
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Seatpost |
Brompton Standard Chromoly steel tube – gloss black. Suitable for maximum inside leg 33″/83cm |
Alloy, Micro Adjust, 27.2 x 350 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 |
Flangeless, Lock-On Comfort Grip, 135 mm |
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Crankset |
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Forged Alloy, Three Piece with Guard |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
PC Platform |
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Chain |
Hollow pin Superlight Advance Chain |
KMC Z410 |
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Shifters |
Brompton 4 speed trigger shifter |
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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 |
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Headset |
Brompton Superlight headset |
Sealed, 1-1/8" |
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Derailleur Rear |
Patent-pending direct mount 4 speed derailleur |
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Hub Front |
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Alloy, 32 Hole, Nutted |
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Hub Rear |
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Alloy Track Hub, Fixed/Free, 32 Hole, Nutted |
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Spoke |
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Black, 14g |
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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 |
Alloy, 42 tooth |
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Bottom Bracket |
Square taper bottom bracket |
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