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 |
Diamond frame design with 6061 aluminum oversized tubing, sloping top tube design, water bottle bosses, alloy kickstand, and painted steel chainguard |
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Stem |
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Alloy hi-rise, 150mm quill, 100mm extension, with removeable 2-bolt cap |
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Handle Bar |
High Handlebars – Brompton triple butted 6061 aluminium handlebar with shot-peened finish |
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Fork |
Steel brazed fork |
Oversized hi-tensile steel tubular unicrown with leading dropout and fender boss |
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Seatpost |
Brompton standard length Chromoly steel tube. Suitable for maximum inside leg 33″/84cm |
Alloy pillar style, 26.8 x 300mm, with plugged top, welded seat collar with chromoly QR |
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Grip |
Lock-on grips with soft-compound rubber adhered to an engineered core |
Kraton comfort type with full length,extra-thick, foam bar pads |
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Crankset |
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Forged alloy crank, 170mm, with 44T alloy compact disc chainring |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
Cruiser platform with heat-treated axles and rustless bushings |
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Chain |
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Taya 410H-GST, rustless |
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Shifters |
Brompton 2 and 3 speed Trigger shifters |
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Saddle |
Brompton saddle with integrated carry handle. Incorporates a mount for a Brompton rear light and saddle bag |
Taxi design with extra padding, extra-thick vinyl cover, heavy-duty strut rails & double-loop springs with bag loops |
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Headset |
Brompton headset |
Internal cup, threaded, 1 1/8” |
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Cassette |
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Shimano 18T |
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Chainrings |
44T (-12% gearing) |
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Bottom Bracket |
Square taper bottom bracket |
Sealed cartridge BB with alloy cups & sheath, 68 x 116mm |
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Front |
349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall |
CST Metropolitan Palm Bay, 26" x 2.35 |
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Rear |
349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall |
CST Metropolitan Palm Bay, 26" x 2.35 |
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Wheel / RIM |
Front-wheel: Double-wall rim, 28 spokes laced to a Brompton front hub.
Rear-wheel: Double wall rim, 28 spoke, Brompton Wide ratio 3 speed internal gear hub with 2 speed external gears (13 and 16 tooth) |
Alex X303 36H silver anodized alloy rims with alloy double-sealed front and Shimano CB rear hubs, heavy-duty 12 gauge stainless steel spokes |
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Tube |
Schrader valve |
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