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 |
Fuji A2-SL custom butted alloy |
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Stem |
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3D-forged alloy, +/- 6°, 31.8 mm |
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Handle Bar |
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Alloy, 18 mm rise, 6° backsweep |
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Fork |
Superlight Titanium fork with a threaded headset |
Fuji C10 carbon |
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Seatpost |
Brompton Standard Chromoly steel tube – gloss black. Suitable for maximum inside leg 33″/83cm |
Alloy, 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 |
Velo comfort sport |
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Crankset |
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Shimano R345, 50/34T OR Prowheel Ounce 521 |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
Alloy platform |
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Chain |
Hollow pin Superlight Advance Chain |
KMC X9 |
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Shifters |
Brompton 4 speed trigger shifter |
Shimano Sora, 2 x 9-speed OR microSHIFT R9 Xpress Shift |
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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 |
Selle Royal Vivo Ergo |
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Headset |
Brompton Superlight headset |
1-1/8" semi-integrated |
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Derailleur Front |
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Shimano Sora OR microSHIFT R9 |
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Derailleur Rear |
Patent-pending direct mount 4 speed derailleur |
Shimano Sora OR microSHIFT R9 |
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Hub Front |
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Shimano center lock hub |
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Hub Rear |
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Shimano center lock hub |
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Spoke |
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Stainless spokes |
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Cassette |
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Shimano Alivio, 11-32T OR micrSHIFT CS-H092, 11-34T |
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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 |
Shimano Octalink, sealed bearing OR FSA BB-7420ST |
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