Drivetrain |
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Brompton 4 speed drivetrain, 163% range |
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Frame |
Double-Butted 6061 Aluminum Alloy |
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 |
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Stem |
Aventon Push 3D Forged Alloy, 4-bolt, +/- 7° |
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Handle Bar |
31.8mm*40cm Push Drop Bars |
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Fork |
Aventon tapered Fork, Alloy Steerer Tube, Carbon Blades. |
Superlight Titanium fork with a threaded headset |
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Seatpost |
Aventon Push 27.2mm*300mm 3D Forged Alloy
Seat Clamp : Single Bolt Style |
Brompton Standard Chromoly steel tube – gloss black. Suitable for maximum inside leg 33″/83cm |
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Grip |
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Superlight lock-on grips with precision ground lightweight foam adhered to ultrathin engineered core weighing just 42g per pair |
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Pedals |
Alloy Road Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
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Chain |
1/2" x 1/8" |
Hollow pin Superlight Advance Chain |
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Shifters |
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Brompton 4 speed trigger shifter |
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Gear |
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4-speed gear system |
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Saddle |
Aventon Aero Race Saddle w/ Center Cutout |
Fizik Aliante R7 – a comfortable saddle with lightweight performance from its Composite Carbon Nylon shell |
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Headset |
28.6*41.8*30mm Sealed Bearing |
Brompton Superlight headset |
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Derailleur Rear |
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Patent-pending direct mount 4 speed derailleur |
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Hub Front |
Flip-Flop Sealed Bearing |
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Spoke |
14G Stainless steel w/ brass nipples |
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Chainrings |
Aventon Push Forged Alloy 48T*170mm BCD 144mm |
6061 forged aluminium crank with 50T chainring and integrated chainguard |
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Sprocket |
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11-13-15-18 Tooth |
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Bottom Bracket |
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Square taper bottom bracket |
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