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 |
Ultralight 300 Series Alpha Aluminum, Invisible Weld technology, tapered head tube, Control Freak internal routing, DuoTrap S compatible, flat mount disc |
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Stem |
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Bontrager Elite, 31.8 mm, Blendr compatible, 7 degree |
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Handle Bar |
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Bontrager Comp VR-C, alloy |
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Fork |
Superlight Titanium fork with a threaded headset |
Emonda SL full carbon, tapered carbon steerer, internal brake routing, flat mount disc |
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Seatpost |
Brompton Standard Chromoly steel tube – gloss black. Suitable for maximum inside leg 33″/83cm |
Bontrager Approved, alloy |
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Grip |
Superlight lock-on grips with precision ground lightweight foam adhered to ultrathin engineered core weighing just 42g per pair |
Bontrager Supertack Perf tape |
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Crankset |
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Shimano Tiagra 4700 |
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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 |
Shimano Tiagra HG54, 10 speed |
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Shifters |
Brompton 4 speed trigger shifter |
Shimano Tiagra R4725, short reach lever, 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 |
FSA Integrated, sealed cartridge bearing, 1-1/8 top, 1.5 bottom |
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Derailleur Front |
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Shimano Tiagra 4700, braze-on |
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Derailleur Rear |
Patent-pending direct mount 4 speed derailleur |
Shimano Tiagra 4700, long cage |
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Hub Front |
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Bontrager alloy, sealed bearing, centerlock disc |
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Hub Rear |
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Bontrager alloy, sealed bearing, centerlock disc |
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Spoke |
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14 g stainless steel |
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Cassette |
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Shimano Tiagra HG500, 12-28, 10 speed |
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Chainrings |
6061 forged aluminium crank with 50T chainring and integrated chainguard |
50 / 34 T |
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Sprocket |
11-13-15-18 Tooth |
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Bottom Bracket |
Square taper bottom bracket |
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Front |
Schwalbe ONE Black Tyre |
Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700 x 25 c |
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Rear |
Schwalbe ONE Black Tyre |
Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700 x 25 c |
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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 |
Bontrager Affinity Disc, Tubeless Ready, 24-hole, 21 mm width, Presta valve |
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