Drivetrain |
Brompton Wide-range 6 speed drivetrain (2 x 3 speed), 302% range |
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Frame |
Main Frame : Precision drawn heat-treated steel tubing with hand brazing and selected auto-brazed joints
Rear Frame : Hand brazed cold-formed micro-alloy steel tubing |
Alloy 6061 with weather proofed internal cable routing and internal headset. |
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Stem |
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Forme Alloy, 60mm x 31.8mm |
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Handle Bar |
High Handlebars – Brompton triple butted 6061 aluminium handlebar with shot-peened finish |
Forme Alloy, 680mm x 31.8mm, 20mm Rise |
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Fork |
Steel brazed fork |
SR Suntour XCM, HLO, 100mm |
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Seatpost |
Brompton standard length Chromoly steel tube. Suitable for maximum inside leg 33″/84cm |
Forme Alloy, 2 bolt, 30.9mm |
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Grip |
Lock-on grips with soft-compound rubber adhered to an engineered core |
Forme Lock On |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
Black Alloy, Platform |
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Chain |
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KMC, 9 Speed
Chainset: Prowheel, 170mm, 22T-36T |
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Shifters |
Brompton 2 and 3 speed Trigger shifters |
Shimano SL-M3100, 18 Speed |
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Saddle |
Brompton saddle with integrated carry handle. Incorporates a mount for a Brompton rear light and saddle bag |
Forme Sport Comfort |
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Headset |
Brompton headset |
44mm Integrated, Cage Bearing |
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Derailleur Front |
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Shimano Altus, double |
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Derailleur Rear |
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Shimano Altus, 9 Speed |
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Cassette |
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Shimano HG200, 9 Speed, 11-34T |
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Chainrings |
44T (-12% gearing) |
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Bottom Bracket |
Square taper bottom bracket |
Square Taper, Cartridge Bearing |
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