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 |
FX Sport 400 series OCLV carbon, IsoSpeed, 3s chain keeper, DuoTrap S compatible, flat mount disc, 12mm thru axle, hidden fender mounts |
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Stem |
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Bontrager Elite, 31.8 mm, 7 degree, with computer & light mounts |
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Handle Bar |
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Bontrager Satellite Plus IsoZone, 31.8 mm, 15 mm rise |
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Fork |
Superlight Titanium fork with a threaded headset |
FX carbon, flat mount disc, hidden fender mounts, 12 mm thru axle |
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Seatpost |
Brompton Standard Chromoly steel tube – gloss black. Suitable for maximum inside leg 33″/83cm |
Bontrager alloy, 2-bolt head, 27.2 mm, 8 mm offset |
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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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Crankset |
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Shimano Tiagra |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
VP nylon body with alloy cage, toe-clip/strap |
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Chain |
Hollow pin Superlight Advance Chain |
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Shifters |
Brompton 4 speed trigger shifter |
Shimano Tiagra rapid-fire, 10 speed |
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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 |
Bontrager Montrose Comp |
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Headset |
Brompton Superlight headset |
1-1/8-inch threadless, sealed cartridge bearings |
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Derailleur Front |
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Shimano Tiagra, braze-on |
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Derailleur Rear |
Patent-pending direct mount 4 speed derailleur |
Shimano Tiagra |
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Hub Front |
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Bontrager, 12 x 142 mm thru-axle |
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Hub Rear |
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Bontrager, 12 mm thru-axle |
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Cassette |
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Shimano Tiagra, 11-34, 10 speed |
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Chainrings |
6061 forged aluminium crank with 50T chainring and integrated chainguard |
50 / 34 |
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Sprocket |
11-13-15-18 Tooth |
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Bottom Bracket |
Square taper bottom bracket |
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