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 |
Felt Integrated Aero Tri UHC Advanced + TeXtreme carbon fiber, MMC with Inside Out construction, 68 mm BSA threaded bottom bracket shell, horizontal dropouts with integrated dropout adjusters, aerodynamically optimized for direct mount rear brake, internal mechanical or electronic cable routing |
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Stem |
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IA non-integrated -6¡ rise, ¯31.8 mm, 90 mm |
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Handle Bar |
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Devox Bayonet 3.1 base bar with Devox Ergomod extensions, ¯31.8 mm, 48 - 51 cm: 390 mm, 54 - 58 cm: 420 mm |
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Fork |
Superlight Titanium fork with a threaded headset |
Felt IA UHC Advanced carbon fiber monocoque construction, 1.125" carbon fiber steerer, blades, dropouts, crown; aerodynamically optimized for a conventional brake |
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Seatpost |
Brompton Standard Chromoly steel tube – gloss black. Suitable for maximum inside leg 33″/83cm |
Felt Vari Mount Aero Tri UHC Advanced carbon fiber, 300 mm length |
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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 105 R7000, 52/36T, 48 -51 cm: 165 mm, 54 -56 cm: 170 mm, 58 cm: 172.5 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 |
Shimano 11-speed |
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Shifters |
Brompton 4 speed trigger shifter |
micro Shift TT 11-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 |
ISM PS1.1 |
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Headset |
Brompton Superlight headset |
FSA integrated, 1.125" 36¡/45¡ sealed ACB cartridge bearings MR122 {873E-RS}, split top race H2145 {No.11AGY-2} with Felt compression device |
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Derailleur Front |
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Shimano 105 R7000 braze-on |
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Derailleur Rear |
Patent-pending direct mount 4 speed derailleur |
Shimano 105 R7000 11-speed short cage |
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Hub Front |
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Devox TTR3, sealed cartridge bearing, 11-speed, 130 mm QR, 28H |
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Hub Rear |
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Devox TTR4, 100 mm QR, 24H |
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Spoke |
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2.0 mm stainless steel |
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Cassette |
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Shimano 11-speed, 11-28T |
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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 |
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Front |
Schwalbe ONE Black Tyre |
Continental Grand Sport Race folding, 700 x 25 c |
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Rear |
Schwalbe ONE Black Tyre |
Continental Grand Sport Race folding, 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 |
Devox 30A, tubeless ready, 19 mm width, 27 mm depth |
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