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 |
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Stem |
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Bontrager Line, 35 mm, Knock Block, 0-degree, 40 mm length |
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Handle Bar |
High Handlebars – Brompton triple butted 6061 aluminium handlebar with shot-peened finish |
Bontrager Line, alloy, 35 mm, 27.5 mm rise, 820 mm width |
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Fork |
Steel brazed fork |
RockShox Lyrik Select+, DebonAir spring, Charger 2.1 RC damper, tapered steerer, 42 mm offset, Boost110, 15 mm Maxle Stealth, 170 mm travel |
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Seatpost |
Brompton standard length Chromoly steel tube. Suitable for maximum inside leg 33″/84cm |
TranzX JD-YSP39, 150 mm travel, internal routing, 34.9 mm |
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Grip |
Lock-on grips with soft-compound rubber adhered to an engineered core |
Bontrager XR Trail Pro, alloy lock-on |
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Crankset |
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SRAM X1 Eagle, DUB, 30T steel ring, Boost (55 mm chain line), 175 mm length |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
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Chain |
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SRAM GX Eagle, 12-speed |
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Shifters |
Brompton 2 and 3 speed Trigger shifters |
SRAM GX Eagle, 12-speed |
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Saddle |
Brompton saddle with integrated carry handle. Incorporates a mount for a Brompton rear light and saddle bag |
Bontrager Arvada, hollow chromoly rails, 138 mm width |
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Headset |
Brompton headset |
Knock Block 2.0 Integrated, 72-degree radius (includes infinite-radius chip), sealed cartridge bearing, 1-1/8" top, 1.5" bottom |
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Derailleur Rear |
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SRAM GX Eagle |
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Hub Rear |
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Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle |
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Cassette |
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SRAM Eagle XG-1275, 10-52, 12-speed |
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Chainrings |
44T (-12% gearing) |
Max: 34T, Min 28T |
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Bottom Bracket |
Square taper bottom bracket |
SRAM DUB MTB Wide, 73 m, BSA threaded |
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Front |
349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall |
Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29 x 2.40" |
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Rear |
349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall |
Bontrager XR5 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29 x 2.60" |
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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 TLR |
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Tube |
Schrader valve |
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