Drivetrain |
Brompton 4 speed drivetrain, 163% range |
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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 |
6061 aluminum main tubes, over-sized seat tube, zero-stack head tube, over-sized stays, replaceable derailleur hanger |
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Stem |
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Jamis XC alloy threadless, 31.8 x 3˚ rise x 60mm |
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Handle Bar |
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Jamis XC alloy riser, 31.8 x 20mm rise x 740mm |
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Fork |
Superlight Titanium fork with a threaded headset |
SR Suntour XCT 30 HLO 27.5”, coil spring, hydraulic speed lock out adjust, external preload adjustor, 30mm stanchions, aluminum lowers, 100mm travel |
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Seatpost |
Brompton Standard Chromoly steel tube – gloss black. Suitable for maximum inside leg 33″/83cm |
Jamis alloy micro-adjust, 31.6 x 350mm (15”) 400mm (17”-21”) |
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Grip |
Superlight lock-on grips with precision ground lightweight foam adhered to ultrathin engineered core weighing just 42g per pair |
Kraton |
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Crankset |
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Forged Alloy, 32T |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
MTB platform, hi-impact resin |
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Chain |
Hollow pin Superlight Advance Chain |
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Shifters |
Brompton 4 speed trigger shifter |
Shift levers : MicroSHIFT Advent M8195, 1x9-speed |
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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 |
Jamis ATB Sport, SL cover, protective front and rear guards |
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Headset |
Brompton Superlight headset |
Zero-stack internal cup, 8mm cone spacer |
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Derailleur Rear |
Patent-pending direct mount 4 speed derailleur |
MicroSHIFT Advent M6195M 9-speed |
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Cassette |
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MicroSHIFT H093, 9-speed, 11-42T |
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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 |
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