Drivetrain |
Brompton 4 speed drivetrain, 163% range |
-- |
|
|
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 |
PUBLIC chromoly hi-tensile blend, with fender and rack braze-ons |
|
|
Stem |
-- |
Forged alloy quill stem, 25 degree rise, 25.4 mm clamp |
|
|
Handle Bar |
-- |
PUBLIC Brunch Bar, 570 mm wide |
|
|
Fork |
Superlight Titanium fork with a threaded headset |
PUBLIC hi-tensile steel unicrown fork, with fender and rack braze-ons |
|
|
Seatpost |
Brompton Standard Chromoly steel tube – gloss black. Suitable for maximum inside leg 33″/83cm |
Alloy micro-adjust with integrated clamp, 27.2 mm |
|
|
Grip |
Superlight lock-on grips with precision ground lightweight foam adhered to ultrathin engineered core weighing just 42g per pair |
PUBLIC Slender Grip, with alloy clamps |
|
|
Crankset |
-- |
Alloy crankset, 39 tooth chainring with guard |
|
|
Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
Alloy platform pedal, with rubber pads, 9/16" axle |
|
|
Chain |
Hollow pin Superlight Advance Chain |
-- |
|
|
Shifters |
Brompton 4 speed trigger shifter |
Shimano 7-speed twist shifter for Nexus hub |
|
|
Gear |
4-speed gear system |
-- |
|
|
Saddle |
Fizik Aliante R7 – a comfortable saddle with lightweight performance from its Composite Carbon Nylon shell |
PUBLIC City Saddle, 198 mm wide |
|
|
Headset |
Brompton Superlight headset |
1" threaded, steel |
|
|
Derailleur Rear |
Patent-pending direct mount 4 speed derailleur |
-- |
|
|
Hub Front |
-- |
Alloy hub with bolt-on axle |
|
|
Hub Rear |
-- |
Alloy hub with bolt-on axle |
|
|
Spoke |
-- |
Stainless steel |
|
|
Chainrings |
6061 forged aluminium crank with 50T chainring and integrated chainguard |
-- |
|
|
Sprocket |
11-13-15-18 Tooth |
-- |
|
|
Bottom Bracket |
Square taper bottom bracket |
-- |
|
|
Stand |
-- |
Alloy center mount Kickstand |
|
|
Front |
Schwalbe ONE Black Tyre |
Kenda Kwest, 700 x 35c, with reflective stripe |
|
|
Rear |
Schwalbe ONE Black Tyre |
Kenda Kwest, 700 x 35c, with reflective stripe |
|
|
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 |
Painted to match, alloy double wall |
|
|
Tube |
-- |
Presta, 48 mm valve |
|
|