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 |
PUBLIC premium aluminum tubing, with fender and rack braze-ons |
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Stem |
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Kalloy forged alloy quill stem, 25 degree rise, 25.4 mm clamp |
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Handle Bar |
High Handlebars – Brompton triple butted 6061 aluminium handlebar with shot-peened finish |
PUBLIC alloy riser handlebar, 610 mm wide, 15 degree backsweep, 35 mm rise |
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Fork |
Steel brazed fork |
PUBLIC hi-tensile steel unicrown fork, with fender and rack braze-ons |
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Seatpost |
Brompton standard length Chromoly steel tube. Suitable for maximum inside leg 33″/84cm |
Kalloy alloy micro-adjust with integrated clamp, 27.2 mm |
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Grip |
Lock-on grips with soft-compound rubber adhered to an engineered core |
VELO PUBLIC Slender Grip, leather-like, full-length, with alloy clamps |
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Crankset |
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Lasco alloy crankset 170 mm, 39 tooth chainring with outer chainring guard, square tape |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
Wellgo M149 full alloy platform and cage, 9/16" axle |
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Shifters |
Brompton 2 and 3 speed Trigger shifters |
Shimano Altus Rapidfire trigger shifters, 9-speed index |
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Saddle |
Brompton saddle with integrated carry handle. Incorporates a mount for a Brompton rear light and saddle bag |
VELO PUBLIC Premium Sport Saddle, 153 mm wide, chromoly rails, with brass rivits |
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Headset |
Brompton headset |
1" threaded, steel |
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Derailleur Rear |
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Shimano Altus 9-speed |
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Hub Front |
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Alloy low flange 32H, bolt-on QR skewer |
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Hub Rear |
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Alloy low flange 32H, bolt-on QR skewer |
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Spoke |
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14G Stainless steel |
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Cassette |
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Shimano 9 speed HG201 11-34 tooth cassette |
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Chainrings |
44T (-12% gearing) |
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Bottom Bracket |
Square taper bottom bracket |
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