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 |
PUBLIC 4130 100% Chromoly steel, with fender and rack braze-ons, integrated kickstand bracket |
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Stem |
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High polished alloy, threadless, +/- 10 degree rise, 25.4 clamp (80 mm for S/M; 100 mm for M/L) |
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Handle Bar |
High Handlebars – Brompton triple butted 6061 aluminium handlebar with shot-peened finish |
PUBLIC Brunch handlebar, alloy, 570 mm wide |
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Fork |
Steel brazed fork |
PUBLIC 4130 100% Chromoly steel unicrown disc fork, with fender and rack braze-ons |
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Seatpost |
Brompton standard length Chromoly steel tube. Suitable for maximum inside leg 33″/84cm |
Kalloy Alloy micro-adjust high polish 27.2 mm x 350 mm length, with integrated clamp |
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Grip |
Lock-on grips with soft-compound rubber adhered to an engineered core |
PUBLIC Slender Grip, with alloy clamps |
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Crankset |
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Shimano Alfine S501 Crankset, 39T, 170 mm |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
Wellgo alloy platform pedal, with rubber pads, 9/16" axle |
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Shifters |
Brompton 2 and 3 speed Trigger shifters |
Shimano Alfine Rapidfire trigger shifters for 8-speed internal hub |
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Saddle |
Brompton saddle with integrated carry handle. Incorporates a mount for a Brompton rear light and saddle bag |
PUBLIC Premium Comfort Saddle, 221 mm wide, with brass rivets, coil springs, and saddlebag hooks |
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Headset |
Brompton headset |
1 1/8" threadless, steel |
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Hub Front |
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Shimano Alfine 8-speed internal hub with disc mount |
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Hub Rear |
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Formula alloy hub with quick-release axle |
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Spoke |
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Stainless steel 14G |
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Chainrings |
44T (-12% gearing) |
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Bottom Bracket |
Square taper bottom bracket |
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Stand |
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Massload alloy center mount Kickstand |
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Front |
349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall |
Kenda Kwest, 700 x 35c, 60TPI, Cream |
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Rear |
349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall |
Kenda Kwest, 700 x 35c, 60TPI, Cream |
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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) |
Painted to match, alloy double wall, 32H |
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Tube |
Schrader valve |
Presta, 48 mm vallve |
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