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 |
Felt Cyclocross UHC Advanced + TeXtreme carbon fiber, MMC with Inside Out construction, BB386 bottom bracket shell, 12 x 142 mm Syntace style thru axle, shoulder friendly top tube, flat mount disc brake standard, replaceable rear derailleur hanger, internal mechanical or electronic cable routing |
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Stem |
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Devox SL, -7¡ rise, ¯31.8 mm, 51 cm: 90 mm, 54 - 56 cm: 100 mm, 58 cm: 110 mm, 61 cm: 120 mm |
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Handle Bar |
High Handlebars – Brompton triple butted 6061 aluminium handlebar with shot-peened finish |
Devox Cross SL, drop: 126, reach: 70 mm flare 8-deg, ¯31.8 mm, 47 - 50 cm: 400 mm; 53 - 55 cm: 420 mm, 57-60 cm: 440 mm |
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Fork |
Steel brazed fork |
Felt Cyclocross UHC Ultimate + TeXtreme carbon fiber monocoque construction, Control Taper 1.125" - 1.5" carbon fiber steerer tube, integrated crown and blades. Flat mount disc standard, 12 x 100 mm thru axle |
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Seatpost |
Brompton standard length Chromoly steel tube. Suitable for maximum inside leg 33″/84cm |
Devox Lite Road, ¯27.2 mm x 300 mm length |
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Grip |
Lock-on grips with soft-compound rubber adhered to an engineered core |
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Crankset |
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Shimano GRX810, 40T, 47-50 cm: 170 mm, 53-55 cm: 172.5 mm, 57 - 60 cm: 175 mm |
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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 11-speed |
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Shifters |
Brompton 2 and 3 speed Trigger shifters |
Shimano GRX810, 1 x 11 |
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Saddle |
Brompton saddle with integrated carry handle. Incorporates a mount for a Brompton rear light and saddle bag |
Prologo X0 T2.0 |
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Headset |
Brompton headset |
FSA integrated sealed cartridge bearing with Felt Variable Height Cone Spacers (20 mm PC, 4.5 mm aluminum), Felt top cap and aluminum bolt, No.42, 1.125 - 1.5" |
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Derailleur Rear |
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Shimano GRX812, 11-speed long cage |
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Hub Front |
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Devox RSL3D, sealed cartridge bearing, 11-speed, 12 x 142 mm thru axle, Center Lock, 28H |
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Hub Rear |
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Devox RSL3D, sealed cartridge bearing, 12 x 100 mm thru axle, Center Lock, 28H |
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Spoke |
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2.0 mm stainless steel |
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Cassette |
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Shimano 11-speed, 11-40T |
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Chainrings |
44T (-12% gearing) |
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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 |
Schwalbe X-One All Around MicroSkin TL-Easy, folding, 700 x 33c |
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Rear |
349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall |
Schwalbe X-One All Around MicroSkin TL-Easy, folding, 700 x 33c |
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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) |
Devox Variable Road Cx2.1, tubeless compatible 21 mm inner width, 23 mm depth |
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Tube |
Schrader valve |
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