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 |
18” Low Step Frame, Dawes 6061 Hydro-Formed T6 Aluminium Frame |
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Stem |
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Quill Type, 90 mm extension, 40 Degree Rise |
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Handle Bar |
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Dawes Riser Bar, 30 mm Rise, 6 degree back sweep, 620 mm wide |
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Fork |
Superlight Titanium fork with a threaded headset |
Dawes Hi-Ten Unicrown Steel Straight Blades |
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Seatpost |
Brompton Standard Chromoly steel tube – gloss black. Suitable for maximum inside leg 33″/83cm |
27.2 mm x 350 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 Grips, Double Density |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
9/16″ |
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Chain |
Hollow pin Superlight Advance Chain |
KMC HV-408 |
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Shifters |
Brompton 4 speed trigger shifter |
Shimano ST-EF41 EZ Fire 3 x 6spd |
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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 |
Dawes Custom Trekking Saddle |
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Headset |
Brompton Superlight headset |
1 1/8″ Threaded |
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Derailleur Front |
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Shimano Tourney FD-TX51 3spd |
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Derailleur Rear |
Patent-pending direct mount 4 speed derailleur |
Shimano Tourney RD-TZ50 6spd |
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Hub Front |
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36H Nutted |
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Hub Rear |
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36H Quick Release |
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Spoke |
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14G |
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Chainrings |
6061 forged aluminium crank with 50T chainring and integrated chainguard |
Chainwheel : 170 mm Alloy Crank, 48-38-28T Chainrings |
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Sprocket |
11-13-15-18 Tooth |
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Bottom Bracket |
Square taper bottom bracket |
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