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 |
6061 aluminum triple gauge main tubes with hydro-formed top tube, sloping design for men’s, step through design for ladies, internal cable routing, center-mount kickstand plate, replaceable derailleur hanger and fender/rack eyelets |
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Stem |
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Jamis alloy angle-adjustable, 90mm with 150mm quill (14–17”), 110mm with 180mm quill (18–23”) |
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Handle Bar |
High Handlebars – Brompton triple butted 6061 aluminium handlebar with shot-peened finish |
Comfort hi-rise, alloy 25.4 x 80mm rise x 15˚ sweep x 640mm |
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Fork |
Steel brazed fork |
SR/Suntour CR8 suspension fork, coil spring with external preload adjustment, 60mm travel |
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Seatpost |
Brompton standard length Chromoly steel tube. Suitable for maximum inside leg 33″/84cm |
Suspension alloy micro-adjust, 27.2 x 350mm with alloy clamp and QR seatpin. 300mm for Men’s 15, 17, Step-Thru 14 |
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Grip |
Lock-on grips with soft-compound rubber adhered to an engineered core |
Anatomic triple density kraton |
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Crankset |
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SR Suntour XCC-T208, 48/38/28T, 170mm with chainguard |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
Comfort platform style with TPE non-slip insert |
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Chain |
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KMC Z8.3 |
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Shifters |
Brompton 2 and 3 speed Trigger shifters |
Shift levers : Shimano EZ-Fire Plus, ST-EF500, 24-speed |
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Saddle |
Brompton saddle with integrated carry handle. Incorporates a mount for a Brompton rear light and saddle bag |
Jamis Comfort with Memory Foam, synthetic suede cover, burnished sides and bumper springs with satin steel rails, gender specific |
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Headset |
Brompton headset |
Water-resistant sealed mechanism, threaded, 1 1/8” |
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Derailleur Front |
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Shimano FD-TY710 front, 31.8mm clamp, top swing/dual pull |
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Derailleur Rear |
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Shimano Tourney TX-800 |
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Cassette |
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Shimano HG-2008, 8-speed, 12-32T |
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Chainrings |
44T (-12% gearing) |
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Bottom Bracket |
Square taper bottom bracket |
Sealed cartridge, 68 x 122.5mm |
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Stand |
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Kickstand |
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Front |
349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall |
CST Platinum Performance with silver safety stripe, 700 x 38c |
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Rear |
349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall |
CST Platinum Performance with silver safety stripe, 700 x 38c |
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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 ID-19 double wall alloy rims with GSW sidewall, 32H, alloy hubs with QR and 14g ED black spokes |
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Tube |
Schrader valve |
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