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 |
TIG-Welded Hi-Tensile Steel w/Carrier Bosses |
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Stem |
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Aluminum Threadless 4-bolt, 15 Degree, S: 70 mm, M-L:80 mm, XL: 90 mm |
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Handle Bar |
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Aluminum 20 mm Rise, 600 mm, 10 Degree |
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Fork |
Superlight Titanium fork with a threaded headset |
High Tensile Straight Blades |
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Seatpost |
Brompton Standard Chromoly steel tube – gloss black. Suitable for maximum inside leg 33″/83cm |
Aluminum Micro-Adjust, 26.0 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 |
Q2 Lock-On |
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Crankset |
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Aluminum Forged, 3-pc, 44T w/Aluminum Double Guard, 170 mm |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
Resin Platform w/Boron Axle |
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Chain |
Hollow pin Superlight Advance Chain |
KMC Z8.3 |
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Shifters |
Brompton 4 speed trigger shifter |
MicroShift TS71-8 Trigger |
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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 |
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Headset |
Brompton Superlight headset |
Threadless 1-1/8” |
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Derailleur Rear |
Patent-pending direct mount 4 speed derailleur |
Shimano RD-TX800 |
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Hub Front |
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Aluminum QR, Cassette, Cassette |
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Hub Rear |
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Aluminum QR |
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Spoke |
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14G Stainless Black, 32 x 32 |
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Cassette |
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Shimano CS-HG200-8, 12-32T, 8-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 |
FSA Cartridge Bearing |
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