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 Adventure Road Disc Superlite custom butted aluminum, smooth welded construction, 68 mm BSA threaded bottom bracket shell, 12 x 142 mm with Syntace style thru axle, flat mount disc brake standard, replaceable rear derailleur hanger, internal mechanical cable routing |
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Stem |
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Devox VariableAngle, ±8 degree/±16 degree rise, ¯31.8 mm, 47 cm: 80 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 adventure bend, 86 mm reach, 130 mm drop, 8¡ flare, ¯31.8 mm, 47 cm: 400 mm, 51 cm: 420 mm, 54 cm: 440 mm, 56 - 61 cm: 460 mm |
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Fork |
Steel brazed fork |
Felt Adventure Gravel UHC Advanced carbon fiber monocoque construction, Control Taper 1.125" - 1.5" aluminum steerer tube, flat mount disc standard, 12 x 100 mm thru axle with mid-mount rack and fender mounts |
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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 330 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 GRX600 11 speed, 46/30T, 47-51 cm: 170 mm, 54 - 56 cm: 172.5 mm, 58 - 61 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 GRX600 11-speed |
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Saddle |
Brompton saddle with integrated carry handle. Incorporates a mount for a Brompton rear light and saddle bag |
SR Essenza Blackstar Gel |
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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 Front |
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Shimano GRX810 braze-on, with ¯31.8 mm clamp adapter |
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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 GR.1 Disc, 11-speed, 12 x 142 mm thru axle, Center Lock, 28H |
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Hub Rear |
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Devox GR.2 Disc, 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, 11-34T |
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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 |
Maxxis Refuse with Max Shield, tubeless ready, folding, 700 x 40c |
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Rear |
349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall |
Maxxis Refuse with Max Shield, tubeless ready, folding, 700 x 40c |
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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 Adventure 2.1 Disc, tubeless compatible 21 mm inner width, 23 mm depth |
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Tube |
Schrader valve |
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