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 Aluminum, TIG welded w/Disc Tab, 12 x 148 Thru-axle |
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Stem |
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Captain: Threadless 3D Forged, 17D, 31.8 mm, 90 mm, Stoker: Aluminum, 35 Degree Adjustable |
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Handle Bar |
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FSA Vero Aluminum Compact Drop, Double Butted, 31.8 mm |
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Fork |
Superlight Titanium fork with a threaded headset |
Oversized CrMo Unicrown, 1.5 Taper, 12 x 110 Thru-axle |
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Seatpost |
Brompton Standard Chromoly steel tube – gloss black. Suitable for maximum inside leg 33″/83cm |
Captain: Aluminum Micro Adjust, 27.2 mm; Stoker: Aluminum Suspension, Micro Adjust, 27.2 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 |
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Crankset |
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2-pc Aluminum Forged Tandem, Captain: 50/39/30T, 175 mm, Stoker: 39T, 170 mm |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
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Chain |
Hollow pin Superlight Advance Chain |
KMC X10 |
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Shifters |
Brompton 4 speed trigger shifter |
Shimano Tiagra STI |
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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 |
KHS Road Padded & Ladies Road Padded |
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Headset |
Brompton Superlight headset |
FSA Orbit 1.5E ZS, 1-1/8”~1.5”, Aluminum Cap |
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Derailleur Front |
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Shimano Tiagra, 31.8 mm |
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Derailleur Rear |
Patent-pending direct mount 4 speed derailleur |
Shimano GRX, RD-RX400 |
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Hub Front |
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Aluminum QR, Sealed Bearing, Disc, Cassette |
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Hub Rear |
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Aluminum QR23, Sealed Bearing, Disc |
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Spoke |
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14G Stainless Black, 40 x 40 |
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Cassette |
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Shimano CS-HG50, 11-36T, 10-Speed |
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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 |
Outboard Cartridge Bearing |
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Front |
Schwalbe ONE Black Tyre |
Kenda Kwick Roller Sport K-1029, 700 x 32c, 60TPI Iron Cap |
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Rear |
Schwalbe ONE Black Tyre |
Kenda Kwick Roller Sport K-1029, 700 x 32c, 60TPI Iron Cap |
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Wheel / RIM |
Front Wheel: Superlight front wheel – Lightweight rim, double-butted spokes and aluminium hub body with sealed bearings and hex key axle
Rear Wheel: Superlight 4 speed rear wheel – Lightweight rim, double-butted spokes and aluminium hub body with sealed bearings, newly developed 4 speed freehub body and hex key axle |
Weinmann XC180 Disc, Double Wall, w/Eyelets |
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