Load Carrying Capacity |
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Combined weight of bicycle, rider, and cargo of 300 pounds (136 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 |
6061-T6 aluminum with patented Flat Foot Technology |
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Stem |
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Forged alloy 25.4 mm quill, 80 mm extension |
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Handle Bar |
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Alloy custom bend 25.9" width/4" rise |
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Fork |
Superlight Titanium fork with a threaded headset |
Hi-ten steel unicrown, straight/tapered leg |
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Seatpost |
Brompton Standard Chromoly steel tube – gloss black. Suitable for maximum inside leg 33″/83cm |
Alloy 27.2 mm x 400 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 |
Electra hand-stitched |
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Crankset |
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Forged alloy 170 mm w/ steel 44t chainring with double chainguards |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
Resin platform with non-slip tread |
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Chain |
Hollow pin Superlight Advance Chain |
KMC Z7 nickel plated |
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Shifters |
Brompton 4 speed trigger shifter |
Shimano Revo 7-speed twist with optical gear 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 |
Ergonomic with shock-absorbing elastomers |
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Headset |
Brompton Superlight headset |
1 1/8" steel threaded/semi-integrated |
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Derailleur Rear |
Patent-pending direct mount 4 speed derailleur |
Shimano TX-35 7-speed |
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Hub Front |
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Alloy low flange 32h w/ QR |
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Hub Rear |
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Shimano Nexus Dynamo, 32h |
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Cassette |
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Shimano 7-speed 14-34t |
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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 |
Sealed cartridge 68 mm/118 mm |
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