Load Carrying Capacity |
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Combined weight of bicycle, rider, and cargo of 550 pounds (250 kg) |
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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 |
Classic 6061-T6 alloy tandem w/patented Flat Foot Technology |
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Stem |
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Alloy classic |
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Handle Bar |
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Front : Electra cafe
Rear : Electra custom tandem |
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Fork |
Superlight Titanium fork with a threaded headset |
Chromoly unicrown |
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Seatpost |
Brompton Standard Chromoly steel tube – gloss black. Suitable for maximum inside leg 33″/83cm |
Classic alloy pillar |
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Grip |
Superlight lock-on grips with precision ground lightweight foam adhered to ultrathin engineered core weighing just 42g per pair |
MTB lock-on type, kraton rubber, alloy lock rings |
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Crankset |
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Electra custom alloy 3-piece |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
Electra retro |
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Chain |
Hollow pin Superlight Advance Chain |
KMC Z51 1/2" x 3/32" nickel plated |
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Shifters |
Brompton 4 speed trigger shifter |
Shimano Revo 7-speed twist with optical display |
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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 |
Electra comfort with elastomer springs |
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Headset |
Brompton Superlight headset |
1 1/8" steel threaded |
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Derailleur Rear |
Patent-pending direct mount 4 speed derailleur |
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Hub Front |
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Shimano Nexus 7-speed internal with freewheel 36h |
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Hub Rear |
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Shimano Nexus BR-IM40 with roller brake alloy 36h |
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Cassette |
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22T |
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Chainrings |
6061 forged aluminium crank with 50T chainring and integrated chainguard |
44T steel chainring |
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Sprocket |
11-13-15-18 Tooth |
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Bottom Bracket |
Square taper bottom bracket |
Sealed cartridge |
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Stand |
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Integrated kickstand |
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