Drivetrain |
Brompton 4 speed drivetrain, 163% range |
Shimano Acera/Altus 3x8 drivetrain |
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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 |
Series 1 6061 Aluminum, 27.5” Wheels, 68 mm BB shell, 135 mm Forged Dropouts, Disc Brake |
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Stem |
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Alloy, 31.8 mm, 45 mm |
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Handle Bar |
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31.8 Riser, 20 mm Rise, 740 mm Width |
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Fork |
Superlight Titanium fork with a threaded headset |
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Seatpost |
Brompton Standard Chromoly steel tube – gloss black. Suitable for maximum inside leg 33″/83cm |
Alloy, 27.2 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 |
Entity MTB, Closed End |
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Crankset |
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Forged Alloy, Steel Chainrings, 36/22T |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
Nylon Platform |
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Chain |
Hollow pin Superlight Advance Chain |
KMC Z8 |
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Shifters |
Brompton 4 speed trigger shifter |
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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 |
Entity MTB |
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Headset |
Brompton Superlight headset |
44 mm Zero Stack, 8 mm Cone |
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Derailleur Front |
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Shimano Altus |
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Derailleur Rear |
Patent-pending direct mount 4 speed derailleur |
Shimano Acera, 8-Speed |
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Hub Front |
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Forged Alloy, 6-Bolt Disc, 32H |
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Hub Rear |
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Forged Alloy, 6-Bolt Disc, 32H |
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Spoke |
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Black Stainless Steel, Brass Nipples |
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Cassette |
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Shimano HG-200, 8-Speed, 11-32T |
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Chainrings |
6061 forged aluminium crank with 50T chainring and integrated chainguard |
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Sprocket |
11-13-15-18 Tooth |
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Bottom Bracket |
Square taper bottom bracket |
Sealed Cartridge Bearings, Square Taper |
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