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 |
Specialized A1 premium butted alloy, zero-stack head tube, internal cable routing, 135x9mm forged dropouts, chainstay-mounted disc brake, replaceable alloy derailleur hanger, stealth rack mounts, dropper post compatible |
|
|
Stem |
-- |
3D-forged alloy, 31.8mm, 7-degree rise |
|
|
Handle Bar |
-- |
Stout Mini Rise, alloy, 9-degree backsweep, 15mm rise, 31.8mm |
|
|
Fork |
Superlight Titanium fork with a threaded headset |
SR Suntour XCE 29, 28mm stanchions, Rx Tune, coil spring, QR, 90/100mm travel (size-specific), 46mm offset |
|
|
Seatpost |
Brompton Standard Chromoly steel tube – gloss black. Suitable for maximum inside leg 33″/83cm |
Alloy, 2-bolt clamp, 30.9mm |
|
|
Grip |
Superlight lock-on grips with precision ground lightweight foam adhered to ultrathin engineered core weighing just 42g per pair |
Specialized MTB Grip, lock-on |
|
|
Crankset |
-- |
Stout 2x, forged alloy |
|
|
Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
SBC-54 Flat pedal |
|
|
Chain |
Hollow pin Superlight Advance Chain |
KMC X8 EPT, anti-rust coating, 8-speed w/ reusable Missing Link™ |
|
|
Shifters |
Brompton 4 speed trigger shifter |
microSHIFT, TS39-8R, 2x8-speed |
|
|
Gear |
4-speed gear system |
-- |
|
|
Saddle |
Fizik Aliante R7 – a comfortable saddle with lightweight performance from its Composite Carbon Nylon shell |
Bridge Sport, Steel rails, 155/143mm |
|
|
Headset |
Brompton Superlight headset |
-- |
|
|
Derailleur Front |
-- |
microSHIFT FD-M462, 2-speed |
|
|
Derailleur Rear |
Patent-pending direct mount 4 speed derailleur |
Microshift Mezzo, 8spd |
|
|
Hub Front |
-- |
Formula 6-Bolt, disc, 100x9mm spacing, quick-release, 32H |
|
|
Hub Rear |
-- |
Formula SP-2125, 6-Bolt freehub, disc, 135x9mm spacing, quick-release |
|
|
Spoke |
-- |
Stainless, 14g |
|
|
Cassette |
-- |
SunRace, 8-speed, 11-34t |
|
|
Chainrings |
6061 forged aluminium crank with 50T chainring and integrated chainguard |
-- |
|
|
Sprocket |
11-13-15-18 Tooth |
-- |
|
|
Bottom Bracket |
Square taper bottom bracket |
Square-tapered, 73mm, internal bearings, 122.5mm spindle |
|
|