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 |
Diamond frame design with 6061 aluminum oversized tubing, sloping top tube design, water bottle bosses, alloy kickstand, and painted steel chainguard |
|
|
Stem |
-- |
Alloy hi-rise, 150mm quill, 100mm extension, with removeable 2-bolt cap |
|
|
Fork |
Superlight Titanium fork with a threaded headset |
Oversized hi-tensile steel tubular unicrown with leading dropout and fender boss |
|
|
Seatpost |
Brompton Standard Chromoly steel tube – gloss black. Suitable for maximum inside leg 33″/83cm |
Alloy pillar style, 26.8 x 300mm, with plugged top, welded seat collar with chromoly QR |
|
|
Grip |
Superlight lock-on grips with precision ground lightweight foam adhered to ultrathin engineered core weighing just 42g per pair |
Kraton comfort type with full length,extra-thick, foam bar pads |
|
|
Crankset |
-- |
Forged alloy crank, 170mm, with 44T alloy compact disc chainring |
|
|
Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
Cruiser platform with heat-treated axles and rustless bushings |
|
|
Chain |
Hollow pin Superlight Advance Chain |
Taya 410H-GST, rustless |
|
|
Shifters |
Brompton 4 speed trigger shifter |
-- |
|
|
Gear |
4-speed gear system |
-- |
|
|
Saddle |
Fizik Aliante R7 – a comfortable saddle with lightweight performance from its Composite Carbon Nylon shell |
Taxi design with extra padding, extra-thick vinyl cover, heavy-duty strut rails & double-loop springs with bag loops |
|
|
Headset |
Brompton Superlight headset |
Internal cup, threaded, 1 1/8” |
|
|
Derailleur Rear |
Patent-pending direct mount 4 speed derailleur |
-- |
|
|
Cassette |
-- |
Shimano 18T |
|
|
Chainrings |
6061 forged aluminium crank with 50T chainring and integrated chainguard |
-- |
|
|
Sprocket |
11-13-15-18 Tooth |
-- |
|
|
Bottom Bracket |
Square taper bottom bracket |
Sealed cartridge BB with alloy cups & sheath, 68 x 116mm |
|
|