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 |
BACKROAD AL roasted olive 46cm-27.5 |
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Stem |
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Rose Square (6°), aluminium 6061, integrated cable guides, anodized black 70 mm |
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Handle Bar |
High Handlebars – Brompton triple butted 6061 aluminium handlebar with shot-peened finish |
Ritchey Butano Comp, ROSE Branding, 40cm |
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Fork |
Steel brazed fork |
ROSE-Cross Backroad, Carbon, 28" matt black/roasted olive |
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Seatpost |
Brompton standard length Chromoly steel tube. Suitable for maximum inside leg 33″/84cm |
ROSE carbon post, aluminium head, XX offset, matt carbon Ø27,2/350 mm |
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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 GRX 810, FC-RX810-11, 48/31T, Hollowtech II 170 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 CN-HG601, 118 links |
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Shifters |
Brompton 2 and 3 speed Trigger shifters |
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Saddle |
Brompton saddle with integrated carry handle. Incorporates a mount for a Brompton rear light and saddle bag |
Rose Edition by Selle Italia black |
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Headset |
Brompton headset |
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Cassette |
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Shimano 105 CS-R7000, 11-34 |
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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 G-One Allround, Evo, MicroSkin, TL-Easy, black 27.5 x 1.5 |
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Rear |
349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall |
Schwalbe G-One Allround, Evo, MicroSkin, TL-Easy, black 27.5 x 1.5 |
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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) |
ROSE R25 | inner rim width 19mm | 24 spokes, 27,5" |
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Tube |
Schrader valve |
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