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 |
TIG-Welded Hi-Tensile Steel, Internal Cables |
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Stem |
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Aluminum Quill, 25 Degree |
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Handle Bar |
High Handlebars – Brompton triple butted 6061 aluminium handlebar with shot-peened finish |
Aluminum, 100 mm rise, 660 mm |
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Fork |
Steel brazed fork |
Hi-Tensile Unicrown Straight Blades |
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Seatpost |
Brompton standard length Chromoly steel tube. Suitable for maximum inside leg 33″/84cm |
Aluminum Suspension, 25.4 mm |
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Grip |
Lock-on grips with soft-compound rubber adhered to an engineered core |
Comfort Kraton |
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Crankset |
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Shimano FC-TY501, 48/38/28T w/CG, S-M:170, L-XXXL:175 |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
Nylon Platform |
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Chain |
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KMC Z8.3 |
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Shifters |
Brompton 2 and 3 speed Trigger shifters |
Shimano Revo RS36 |
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Saddle |
Brompton saddle with integrated carry handle. Incorporates a mount for a Brompton rear light and saddle bag |
DDK Wide Comfort, Memory Foam w/Elastomer Spring |
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Headset |
Brompton headset |
1-1/8” Threaded, Zero Stack w/Aluminum Conical Top Cap |
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Derailleur Front |
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Shimano Tourney, TY510, 28.6 mm |
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Derailleur Rear |
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Shimano Tourney, RD-TY300D |
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Hub Front |
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Aluminum, QR, Rubber Seal |
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Hub Rear |
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Aluminum, QR, Rubber Seal |
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Spoke |
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14G Stainless, 32 x 32 |
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Chainrings |
44T (-12% gearing) |
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Bottom Bracket |
Square taper bottom bracket |
Cartridge Bearing |
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Front |
349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall |
Kenda Khan, 700 x 38c, Skin Wall w/Anti-Puncture |
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Rear |
349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall |
Kenda Khan, 700 x 38c, Skin Wall w/Anti-Puncture |
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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) |
Aluminum, 700c, 32H |
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Tube |
Schrader valve |
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