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 |
Ultralight 300 Series Alpha Aluminum, Invisible Weld technology, tapered head tube, Control Freak internal routing, DuoTrap S compatible, flat mount disc |
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Stem |
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Bontrager Elite, 31.8 mm, Blendr compatible, 7 degree |
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Handle Bar |
High Handlebars – Brompton triple butted 6061 aluminium handlebar with shot-peened finish |
Bontrager Comp VR-C, alloy |
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Fork |
Steel brazed fork |
Emonda SL full carbon, tapered carbon steerer, internal brake routing, flat mount disc |
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Seatpost |
Brompton standard length Chromoly steel tube. Suitable for maximum inside leg 33″/84cm |
Bontrager Approved, alloy |
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Grip |
Lock-on grips with soft-compound rubber adhered to an engineered core |
Bontrager Supertack Perf tape |
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Crankset |
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Shimano Tiagra 4700 |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
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Chain |
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Shimano Tiagra HG54, 10 speed |
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Shifters |
Brompton 2 and 3 speed Trigger shifters |
Shimano Tiagra R4725, short reach lever, 10 speed |
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Saddle |
Brompton saddle with integrated carry handle. Incorporates a mount for a Brompton rear light and saddle bag |
Bontrager Montrose Comp |
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Headset |
Brompton headset |
FSA Integrated, sealed cartridge bearing, 1-1/8 top, 1.5 bottom |
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Derailleur Front |
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Shimano Tiagra 4700, braze-on |
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Derailleur Rear |
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Shimano Tiagra 4700, long cage |
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Hub Front |
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Bontrager alloy, sealed bearing, centerlock disc |
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Hub Rear |
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Bontrager alloy, sealed bearing, centerlock disc |
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Spoke |
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14 g stainless steel |
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Cassette |
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Shimano Tiagra HG500, 12-28, 10 speed |
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Chainrings |
44T (-12% gearing) |
50 / 34 T |
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Bottom Bracket |
Square taper bottom bracket |
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Front |
349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall |
Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700 x 25 c |
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Rear |
349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall |
Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700 x 25 c |
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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) |
Bontrager Affinity Disc, Tubeless Ready, 24-hole, 21 mm width, Presta valve |
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Tube |
Schrader valve |
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