Drivetrain |
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Brompton Wide-range 6 speed drivetrain (2 x 3 speed), 302% range |
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Frame |
4130 double butted crmo, heat treated front triangle,TA sliding dropouts, rack / fender mounts,68 mm BSA BB shell |
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 |
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Stem |
Bombtrack ROAM forged aluminium stem, -7° |
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Handle Bar |
Bombtrack CX-10 drop bar, 31.8 mm, 10° flare |
High Handlebars – Brompton triple butted 6061 aluminium handlebar with shot-peened finish |
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Fork |
4130 crmo, TA, rack / fender mounts, internal hubdynamo cable routing |
Steel brazed fork |
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Seats |
Seat clamp : Bombtrack ORIGIN 29.8 mm |
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Seatpost |
Bombtrack BEECH 27.2 mm x 300 mm |
Brompton standard length Chromoly steel tube. Suitable for maximum inside leg 33″/84cm |
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Grip |
Bombtrack ESCAPE bar tape |
Lock-on grips with soft-compound rubber adhered to an engineered core |
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Crankset |
Bombtrack AMES forged aluminium crank, 24 mm spindle |
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Pedals |
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Brompton Folding left hand and non-folding right-hand pedals |
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Chain |
KMC X10 chain, 1/2'' x 11/128'', 114L |
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Shifters |
MICROSHIFT BS-M10 bar end shifter 2 x 10 |
Brompton 2 and 3 speed Trigger shifters |
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Saddle |
Bombtrack ORIGIN saddle |
Brompton saddle with integrated carry handle. Incorporates a mount for a Brompton rear light and saddle bag |
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Headset |
NECO H282 sealed external aheadset, 1.1/8'' |
Brompton headset |
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Derailleur Front |
MICROSHIFT FD-R552-B |
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Derailleur Rear |
MICROSHIFT RD-M62L, long cage |
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Hub Front |
KT dynamo hub, 6-bolt disc |
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Hub Rear |
Bombtrack ARC sealed disc hub, 11-speed, 6 bolt disc |
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Cassette |
MICROSHIFT CS-H103 10-speed, 11 - 42 T |
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Chainrings |
steel, subcompact, 46 / 30 T |
44T (-12% gearing) |
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Bottom Bracket |
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Square taper bottom bracket |
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