Drivetrain |
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Brompton 4 speed drivetrain, 163% range |
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Frame |
4130 crmo front triangle, crmo dropouts with rack / fender mounts,68 mm BSA BB shell |
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 |
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Stem |
Bombtrack JAUNT aluminium quill stem, -17° |
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Handle Bar |
Bombtrack HORIZON flat bar, 560 mm, 25.4 mm, 8° backsweep |
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Fork |
Full 4130 crmo, 1'' threaded steerer, with rack and fender mounts |
Superlight Titanium fork with a threaded headset |
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Seats |
Seat Clamp : integrated seat clamp |
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Seatpost |
Bombtrack MYRTLE aluminium seatpost, 27.2 mm x 300 mm |
Brompton Standard Chromoly steel tube – gloss black. Suitable for maximum inside leg 33″/83cm |
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Grip |
Bombtrack SPACE grip with leather bar tape |
Superlight lock-on grips with precision ground lightweight foam adhered to ultrathin engineered core weighing just 42g per pair |
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Crankset |
Bombtrack AF22 aluminium crank, square taper |
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Pedals |
Bombtrack STROLL aluminium pedal |
Brompton Folding left hand and non-folding right-hand pedals |
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Chain |
KMC X9 chain, 1/2'' x 11/128'' |
Hollow pin Superlight Advance Chain |
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Shifters |
DIA Compe ENE W downtube shifter |
Brompton 4 speed trigger shifter |
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Gear |
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4-speed gear system |
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Saddle |
Bombtrack HARRIS saddle |
Fizik Aliante R7 – a comfortable saddle with lightweight performance from its Composite Carbon Nylon shell |
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Headset |
Sealed external headset, 1'' threaded |
Brompton Superlight headset |
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Derailleur Rear |
MICROSHIFT RD-R51M |
Patent-pending direct mount 4 speed derailleur |
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Hub Front |
Bombtrack DROME sealed front hub, 9 mm female bolt axle |
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Hub Rear |
Bombtrack DROME sealed cassette hub, 10 mm female bolt axle |
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Cassette |
MICROSHIFT CS-H092 9-speed, 11 - 34 T |
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Chainrings |
Bombtrack BIRO aluminium, 44 T |
6061 forged aluminium crank with 50T chainring and integrated chainguard |
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Sprocket |
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11-13-15-18 Tooth |
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Bottom Bracket |
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Square taper bottom bracket |
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